Abu Nadrah narrates: I came to Uthman bin Abi al-As (may Allah be pleased with him) during the (first) ten days of Dhu al-Hijjah, and he had a house which he had set apart for narrating hadith. Just then a ram was led past him, and he asked its owner: For how much did you buy it? He said: For twelve dirhams. I said: If I had twelve dirhams, I would buy a ram with them, sacrifice it and feed my family. When I stood up, Uthman's (may Allah be pleased with him) messenger followed me with a purse containing fifty dirhams. I have never seen dirhams with more blessing in them than these; he gave them to me seeking reward, while I was in need of them.
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 8298