Quick answer: The Battle of Badr was fought on 17 Ramadan, 2 AH, corresponding to 13 March 624 CE, when a small Muslim force from Madinah met a much larger Meccan army near the wells of Badr. The Muslims won decisively. The Quran calls it the Day of the Criterion, and the early biographies of the Prophet ﷺ, along with reports in Sahih al-Bukhari, record its main events in detail, though they differ on exact numbers.
Why the two sides met at Badr
By the second year after the Hijrah, relations between the young Muslim community in Madinah and the Quraysh of Makkah had grown openly hostile. The Prophet ﷺ had learned that a Meccan trade caravan, led by Abu Sufyan ibn Harb, was returning from Syria to Makkah. Early biographers describe this caravan as well guarded but not accompanied by a fighting force, and the Muslims set out from Madinah intending to intercept it rather than to fight a pitched battle.
Abu Sufyan learned of the plan and sent word to Makkah for reinforcements while steering the caravan along the coast, away from danger. The Quraysh, however, had already mobilised a large relief force. According to the sources, around 1,000 well-equipped men marched out from Makkah, far outnumbering the Muslim party that had left Madinah expecting only a raid on merchants, not an army. Once the caravan had slipped away safely, Abu Jahl (Amr ibn Hisham), one of the principal Meccan leaders, insisted on pressing forward to Badr anyway rather than turning back, against the wishes of some of his own clan.
The march and the numbers: what sources agree and differ on
All the early accounts agree that the Muslim force was small and lightly equipped compared with the Quraysh. Biographers report that the army had only two horses between them, and about seventy camels for the whole company to share, so most men walked or took turns riding. The classical sources differ, however, on the precise head count. Ibn Ishaq’s account, preserved through later biographers, puts the figure at 314 men, divided between the Muhajirun who had migrated from Makkah and the Ansar of Madinah. Other narrators, including a report attributed to al-Dhahabi, give 319. The number most commonly repeated in later tradition is 313.
Sahih al-Bukhari preserves a hadith on this very question of numbers, narrated by the Companion al-Bara’ ibn Azib (may Allah be pleased with him), who compared the Badr fighters to the companions of the Prophet Talut (Saul) mentioned in the Quran, who crossed a river with him and were said to number a little over three hundred.
حَدَّثَنِي عَبْدُ اللَّهِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا يَحْيَى، عَنْ سُفْيَانَ، عَنْ أَبِي إِسْحَاقَ، عَنِ الْبَرَاءِ،. وَحَدَّثَنَا مُحَمَّدُ بْنُ كَثِيرٍ، أَخْبَرَنَا سُفْيَانُ، عَنْ أَبِي إِسْحَاقَ، عَنِ الْبَرَاءِ ـ رضى الله عنه ـ قَالَ كُنَّا نَتَحَدَّثُ أَنَّ أَصْحَابَ بَدْرٍ ثَلاَثُمِائَةٍ وَبِضْعَةَ عَشَرَ، بِعِدَّةِ أَصْحَابِ طَالُوتَ الَّذِينَ جَاوَزُوا مَعَهُ النَّهَرَ، وَمَا جَاوَزَ مَعَهُ إِلاَّ مُؤْمِنٌ.
Narrated Al-Bara:We used to say that the warriors of Badr were over three-hundred-and-ten, as many as the Companions of Saul who crossed the river with him; and none crossed the river with him but a believer
The Quraysh army was far larger. Most accounts place it at roughly 1,000 men, with around 100 horses and some 600 to 700 camels, though it had been reduced from an initially larger muster after one clan leader, Al-Akhnas ibn Shariq, took his tribesmen home rather than join the fight once the caravan was safe.
Timeline of the Battle of Badr
| Date (2 AH) | Event |
|---|---|
| 8 Ramadan | The Prophet ﷺ leaves Madinah with his companions, intending to intercept the Quraysh caravan. |
| Early Ramadan | Abu Sufyan learns of the Muslim movement and diverts the caravan along the coastal route, sending word to Makkah for help. |
| Mid-Ramadan | The Quraysh relief force, reported at around 1,000 men, marches out from Makkah toward Badr. |
| 16 Ramadan | Both armies approach the wells of Badr; the Muslims secure the water first on the advice of al-Hubab ibn al-Mundhir. |
| 17 Ramadan (13 March 624 CE) | The battle is fought. It opens with single combat between champions, then becomes general fighting; the Quraysh break and retreat. |
| After the battle | Muslim casualties are reported at 14 killed; Quraysh losses are reported at about 70 killed and 70 taken prisoner. |
The day of battle
Tradition describes the fighting beginning, as was customary among the Arabs, with single combat between champions before the main lines engaged. Three Quraysh leaders, Utbah ibn Rabi’ah, his brother Shaybah, and Utbah’s son al-Walid, came forward and were met by three Muslims: Hamzah ibn Abd al-Muttalib, Ali ibn Abi Talib, and Ubaydah ibn al-Harith (may Allah be pleased with them). Ubaydah was mortally wounded in this exchange and is remembered as the first Muslim martyr to fall on a battlefield, while his two Quraysh opponents were killed.
General fighting followed. The Quran describes this battle directly, recalling that victory came though the Muslims were the weaker party, and that angels were sent as support and glad tidings to steady the believers’ hearts.
۞ وَٱعْلَمُوٓا۟ أَنَّمَا غَنِمْتُم مِّن شَىْءٍۢ فَأَنَّ لِلَّهِ خُمُسَهُۥ وَلِلرَّسُولِ وَلِذِى ٱلْقُرْبَىٰ وَٱلْيَتَٰمَىٰ وَٱلْمَسَٰكِينِ وَٱبْنِ ٱلسَّبِيلِ إِن كُنتُمْ ءَامَنتُم بِٱللَّهِ وَمَآ أَنزَلْنَا عَلَىٰ عَبْدِنَا يَوْمَ ٱلْفُرْقَانِ يَوْمَ ٱلْتَقَى ٱلْجَمْعَانِ ۗ وَٱللَّهُ عَلَىٰ كُلِّ شَىْءٍۢ قَدِيرٌ
And know that anything you obtain of war booty – then indeed, for Allah is one fifth of it and for the Messenger and for [his] near relatives and the orphans, the needy, and the [stranded] traveler, if you have believed in Allah and in that which We sent down to Our Servant on the day of criterion – the day when the two armies met. And Allah, over all things, is competent.
By the end of the day the Quraysh line had broken. Abu Jahl, the Meccan commander, was among those killed, struck down according to the accounts by two young Ansari brothers before being finished off by Abdullah ibn Mas’ud (may Allah be pleased with him). Other prominent Quraysh leaders, including Umayyah ibn Khalaf, also died in the fighting. Reports agree that Muslim losses were comparatively light: fourteen men were killed, roughly split between Muhajirun and Ansar.
The captives and the aftermath
Seventy Quraysh were taken prisoner, and the early sources describe the Prophet ﷺ instructing his companions to treat them well. The Companions consulted over what to do with them; ransom was eventually accepted from those whose families could pay, and some poorer prisoners were released after agreeing to teach Muslim children to read and write, a detail reported in the biographical literature on the battle’s aftermath.
The victory reshaped the political situation around Madinah. Tribes that had been watching from a distance took note of the Muslims’ strength, and the defeat sharpened Quraysh resolve to avenge their losses, a resolve that led, a year later, to the Battle of Uhud. Within Madinah itself, the outcome is described in the sources as unsettling an uneasy peace with at least one Jewish tribe, the Banu Qaynuqa, whose later dealings with the Muslims are recorded separately in the biographical and hadith literature.
Where the sources differ
Modern readers sometimes expect a single, uniform account of early Islamic battles, but the classical tradition itself preserves disagreement on details, while agreeing on the shape of events. The exact size of the Muslim force (313, 314 or 319), the precise date the army left Madinah, and some of the fine detail of individual duels are reported with variation between Ibn Ishaq’s material (preserved mainly through Ibn Hisham’s recension), al-Tabari’s history, and the hadith collections. What is agreed across all of them is the date of the battle itself, its location at Badr, the heavy imbalance in numbers between the two sides, and the result: a clear Muslim victory that the Quran names the Day of the Criterion, the day truth and falsehood were distinguished.
What the story leaves behind
- Badr shows a small, poorly equipped community prevailing through reliance on Allah and careful planning rather than numbers or arms, a point the Quran itself draws attention to in describing the battle.
- The honour shown afterward to the Badr veterans, recorded in the hadith about Hatib ibn Abi Balta’ah, reflects a standing the early community gave to those who stood at Badr, regardless of later lapses.
- The differences between early sources on numbers and dates are a normal feature of history reporting, not a weakness; what matters for faith and practice is what the sources agree on.