Whenever Allah's Messenger (ﷺ) (p.b.u.h) ordered us to give in charity, we used to go to the market and work as porters and get a Mudd (a special measure of grain) and then give it in charity. (Those were the days of poverty) and today some of us have one hundred thousand.
Sahih al-Bukhari Book 24, Hadith 20
← Previous Hadith When the verses of charity were revealed, we used to work as porters. A man came and distributed objects of charity in abundance. And they (the people) said, "He is showing off." And another man came and gave a Sa (a small measure of food grains); they said, "Allah is not in need of this small amount of charity." And then the Divine Inspiration came: "Those who criticize such of the believers who give in charity voluntarily and those who could not find to give in charity except what is available to them." (9.79).

Sahih al-Bukhari Book 24, Hadith 19 Next Hadith → "Save yourself from Hell-fire even by giving half a date-fruit in charity."

Sahih al-Bukhari Book 24, Hadith 21