Musannaf Ibn Abi Shaybah

It is narrated from Hazrat Adi bin Umairah al-Kindi (may Allah be pleased with him) that the Holy Prophet (peace and blessings be upon him) said: O people! Whoever among you is appointed as a ruler or official over any matter on our behalf, and then he conceals from us even a needle or anything greater than that, it is a betrayal, and he will bring it with him on the Day of Resurrection. A black Ansari man stood up—as if I am seeing him now—and said, O Messenger of Allah! Please take back the office you have given me. The Prophet (peace and blessings be upon him) asked, For what reason? He replied, I have heard from you what you have just said, and that is why. The Prophet (peace and blessings be upon him) said: I still say that whoever among you is appointed over any matter should bring whatever little or much he has to us; he should take what is given to him and refrain from what is withheld from him.