Ma'n bin 'Isa bin Yahya معن بن عيسى بن يحيى · The Book of Zakah

"The Messenger of Allah said: 'The believers are like a building they support one another.' And he said: "The trustworthy storekeeper who gives that which he has been commanded to give, and is happy with what he is doing, is one of the two giving charity."'

"The Messenger of Allah said: 'if one of you were to carry a bundle of firewood on his back and sell it, that would be better than asking a man who may or may not give him something."'