Narrated from Abdullah bin Mas'ud (may Allah be pleased with him) that the Prophet (peace and blessings of Allah be upon him) said: "On the day when Musa (peace be upon him) spoke with his Lord, he was wearing an old cloak, a woolen robe, a woolen cap, and woolen trousers (pajama), and his shoes were made from the skin of a dead donkey."

Imam Tirmidhi says:
1- This hadith is gharib; we know it only from the narration of Humaid A'raj. By Humaid is meant Humaid bin Ali Kufi.
2- I heard Muhammad bin Isma'il Bukhari say that Humaid bin Ali A'raj is munkar al-hadith, and Humaid bin Qais A'raj Makki, who is a student of Mujahid, is trustworthy.
3- «کمہ» : It refers to a small cap.