Hammad bin Zayd حماد بن زيد بن درهم الأزدي الأزرق · The Book of Zakah

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

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

"If Allah gives a person wealth and he does not pay Zakah on it, his wealth will appear to him on the Day of Resurrection as a bald-heated Shuja'a with two dots above its eyes. It will take hold of the corners of his mouth on the Day of Resurrection and will say: 'I am your wealth, I am your hoarded treasure.' The he recited this verse: 'And let not those who covetously withhold of that which Allah has bestowed…

A similar report was narrated from Abu Hurairah from the Messenger of Allah.

"The Messenger of Allah enjoined Sadaqatul Fitr upon young and old, male and female, free and slave; a Sa' of dates or a Sa' of barley,"

"The poor man (Miskin) is not the one who leaves if you give him a date or two, or a morsel or two. Rather the poor man is the one who refrains from asking. Recite if you wish: "They do not beg of people at all."'

" 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."

"The Messenger of Allah said: "There are three to whom Allah, it Mighty and Sublime, with not speak on the Day of Resurrection: An old man who commits adultery, a poor man who is arrogant, and an Imam who tells lies."'