the Messenger of Allah said: "None gives charity from Tayyib - and Allah does not accept but Tayyib - but that Ar-Rahman accepts it with His Right (Hand). Even if it is a date, it is nurtured in the Hand of Ar-Rahman until it is greater than a mountain, just as one of you nurtures his foal or young camel."
Jami` at-Tirmidhi Book 7, Hadith 45
← Previous Hadith the Prophet said: "Indeed there is a duty on wealth aside from Zakat."

Jami` at-Tirmidhi Book 7, Hadith 44 Next Hadith → the Messenger of Allah said: "Indeed Allah accepts charity, and He accepts it with His Right (Hand) to nurture it for one of you, just like one of you would nuture his foal, until the bite (of food) becomes as large as Uhud." The Book of Allah, the Mighty and Sublime testifies to that: 'He accepts repentance from His worshipers, and accepts charity.'And: 'Allah will destroy Riba and give increase for charity.' (Abu Eisa) said: This Hadith is (Hasan) Sahih.

Jami` at-Tirmidhi Book 7, Hadith 46