Abdur Rahman bin Harmaz al-A'araj عبد الرحمن بن هرمز الأعرج أبو داود · The Book of Zakah

"When the Messenger of Allah died, and Abu Bakr became the Khalifah after him, and some of the 'Arabs reverted to disbelief. 'umar said to Abu Bakr: 'How can you fight the people when the Messenger of allah said: "I have been commanded to fight the people until they say La ilaha illallah (there is none worthy of worship but Allah). Whoever says La ilaha illah, his wealth and his life safe from me, unless he deserves a legal punishment…

"When people brought their Zakah to him, the Messenger of Allah would say: 'O Allah, send salah upon the family of so-and-so,' My father brought his Sadaqah to him and he said: 'O Allah, send Salah upon the family of Abu Awfa."'

"At the time of the Messenger of Allah we used to give a Sa' of dates, or a Sa' of barley, or a Sa' of cottage cheese, and we did not give anything else."

"A man said: 'O Messenger of Allah, which kind of charity is best? He said: 'Giving charity when you are in good health, and feeling stingy, hoping for a long life and fearing poverty."'

"The Messenger of Allah said: 'Whoever seeks refuge with (the name of) Allah, grant him refuge; whoever asks of you in (the name of) Allah, give him; whoever seeks protection with (the name of Allah, give him protection. Whoever does you a favor, then reciprocate, and if you cannot, then supplicate for him until you think that you have repaid him."'

"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."'