Jihad (Kitab Al-Jihad)
Dawud :: Book 14 : Hadith 2584
Narrated As-Sa'ib ibn Yazid:
As-Sa'ib reported on the authority of a man whom he named: The Apostle of Allah (peace_be_upon_him) put on two coats of mail during the battle of Uhud as a double protection. (The narrator is doubtful about the word zahara or labisa.)