(7) باب التَّطَوُّعِ فِي السَّفَرِ
Narrated Al-Bara' ibn Azib:
I accompanied the Messenger of Allah (ﷺ) on eighteen journeys and I never saw him fail to pray two rak'ahs when the sun had passed the meridian before offering the noon prayer. (ID)
Reference (ID): Sunan Abi Dawud 1222 (ID)
In-book reference (ID): Book 4, Hadith 25 (ID)
English translation (ID): Book 4, Hadith 1218 (ID)