Yahya bin Habib bin Arby يحيى بن حبيب بن عربي · The Book of Zakah

"The Messenger of Allah said: 'A Muslim man does not have to pay Zakah on his slave or his horse."'

" The poor man stands at my door, and I cannot find anything to give him. " The Messenger of Allah said to her: "If you cannot find anything to give to him except a sheep's burned foot, then give it to him."