Abu Musa (May Allah be pleased with him) reported:
The Prophet (ﷺ) said, "The honest Muslim trustee who carries out duties assigned to him (in another narration he said, "Who gives"), and he gives that in full, with his heart overflowing with cheerfulness, to whom he is ordered, he is one of the two givers of charity".[Al- Bukhari and Muslim].
Arabic/English book reference: Book 1, Hadith 180