(106) باب فِي التَّوَلِّي يَوْمَ الزَّحْفِ
Abu Sa'id said "The verse "If any do turn his back to them on such a day" was revealed on the day of the Battle of Badr." (IT)
Reference (IT): Sunan Abi Dawud 2648 (IT)
In-book reference (IT): Book 15, Hadith 172 (IT)
English translation (IT): Book 14, Hadith 2642 (IT)