Musannaf Ibn Abi Shaybah 35746 — A man given something to ride

It is narrated from Rabi'ah bin Abdullah that whenever Sayyiduna Umar (may Allah be pleased with him) gave someone a horse or a camel to ride for jihad, he would say to him: When you have passed Wadi al-Qura, or its equivalent on the road to Egypt, then do with it whatever you wish.