Sunan Abu Dawud
685
Sahih+3

Talhah b. 'Ubaid Allah reported the Messenger of Allah (ﷺ) as saying:When you place in front of you something such as the back of a saddle, then there is no harm if someone passes in front of you (i.e. the other side of it)

SahihAl-Albani
SahihMuhammad Muhyi Al-Din Abdul Hamid