"When the Messenger of Allah commanded us to give in charity, Abu 'Aqil give half a Sa', and another man brought much more than that. The hypocrites said: 'Allah has no need of the charity of the former, and the latter only did it to show off. Then the following was revealed: 'Those who defame such of the believers who give charity voluntarily, and such who could not find to give charity except what is available to them."'
Sunan an-Nasa'i Book 23, Hadith 96
← Previous Hadith "The Messenger of Allah used to tell us to give in charity, and one of us could not find anything to give until he went to the market place and hired himself out to carry loads for people. Then he would bring a Mudd and give it to the Messenger of Allah. I know a man who has a hundred thousand now, but on that day he had (only) one Dirham."

Sunan an-Nasa'i Book 23, Hadith 95 Next Hadith → "I asked the Messenger of Allah and he gave me, then I asked him and he gave me, then I asked him and he gave me. Then he said: "This wealth is attractive and sweet. Whoever takes it without insisting, it will be blessed for him, and whoever takes it with avarice, it will not be blessed for him. He is like one who eats and is not satisfied. And the upper hand is better than the lower hand."'

Sunan an-Nasa'i Book 23, Hadith 97