مختصر صحيح بخاري
Mukhtasar Sahih Bukhari
Book of Jihad and Military Expeditions
Two people riding a donkey together.
Narrated from Sayyiduna Usama bin Zaid (may Allah be pleased with him) that the Messenger of Allah (peace and blessings of Allah be upon him) rode on a donkey on whose saddle there was a sheet, and he seated Sayyiduna Usama (may Allah be pleased with him) behind him.