Narrated Abu Talha:
Slumber overtook us during the battle of Uhud while we were in the front files. My sword would fall from my hand and I would pick it up, and again it would fall down and I would pick it up again.
Sahih al-Bukhari, Vol. 6, Book of Prophetic Commentary on the Qur'an, Hadith 85
Sahih al-Bukhari, Book of Prophetic Commentary on the Qur'an, Hadith 85