Musannaf Ibn Abi Shayba 28:1006

'Abd al-Rahim ibn Sulayman narrated to us, from Isma'il ibn Abi Khalid, from Qays ibn Abi Hazim, from 'Adi ibn 'Amirah al-Kindi, who said: The Messenger of Allah (may Allah bless him and grant him peace) said: "O people, whoever among you we appoint to a task, and he conceals from us a needle or anything larger than it, it is a misappropriation (ghulul) which he will bring on the Day of Resurrection." He said: Then a black man from the Ansar stood up to him—as if I am looking at him—and said: "Accept your task back from me, O Messenger of Allah." He said: "What is that?" He said: "I heard you say what you said." He said: "And I say it now: whoever we appoint to a task, let him bring us its little and its much. Whatever he is given from it, he shall take, and whatever he is forbidden from, he shall refrain."