Acceptance of charity that comes from good (Tayyib) earnings, and the growth thereof Sahih Muslim 1014 b
Translation
Abu Huraira reported Allah's Messenger (ﷺ) as saying
No one gives Sadaqa of a date out of his honest earning, but Allah accepts it with His Right Hand, and then fosters it as one of you fosters the colt or a young she-camel, till it becomes like a mountain or even greater.