Sahih al-Bukhari, Volume 5, Book 59, Hadith 396 (USC-MSA) ⓘ

Narrated Al-Bara' bin `Azib: The Prophet appointed `Abdullah bin Jubair as the commander of the cavalry archers on the day of the battle of Uhud. Then they returned defeated, and that what is referred to by Allah's Statement:-- "And the Apostle (Muhammad) was in your rear calling you back." (3.153)

حَدَّثَنِي عَمْرُو بْنُ خَالِدٍ، حَدَّثَنَا زُهَيْرٌ، حَدَّثَنَا أَبُو إِسْحَاقَ، قَالَ سَمِعْتُ الْبَرَاءَ بْنَ عَازِبٍ ـ رضى الله عنهما ـ قَالَ جَعَلَ النَّبِيُّ صلى الله عليه وسلم عَلَى الرَّجَّالَةِ يَوْمَ أُحُدٍ عَبْدَ اللَّهِ بْنَ جُبَيْرٍ، وَأَقْبَلُوا مُنْهَزِمِينَ، فَذَاكَ إِذْ يَدْعُوهُمُ الرَّسُولُ فِي أُخْرَاهُمْ‏.‏

Abu Talha (ra) said: I was amongst those who were overtaken by slumber until my sword fell from my hand on several occasions. The sword fell and I picked it up, and it fell again, and I picked it up."

وَقَالَ لِي خَلِيفَةُ حَدَّثَنَا يَزِيدُ بْنُ زُرَيْعٍ، حَدَّثَنَا سَعِيدٌ، عَنْ قَتَادَةَ، عَنْ أَنَسٍ، عَنْ أَبِي طَلْحَةَ ـ رضى الله عنهما ـ قَالَ كُنْتُ فِيمَنْ تَغَشَّاهُ النُّعَاسُ يَوْمَ أُحُدٍ، حَتَّى سَقَطَ سَيْفِي مِنْ يَدِي مِرَارًا، يَسْقُطُ وَآخُذُهُ، وَيَسْقُطُ فَآخُذُهُ‏.‏