The Prophet ﷺ said: O people, if any of you is put in an administrative post on our behalf and conceals from us a needle or more, he is acting unfaithfully, and will bring it on the Day of Resurrection. A black man from the Ansar, as if I am seeing him, stood and said: Messenger of Allah, take back from me my post. He asked: What is that? He replied: I heard you say such and such. He said: And I say that. If we appoint anyone to an office, he must bring what is connected with it, both little and much. What he is given, he may take, and he must refrain from what is kept away from him. (Using translation from Abū Dāʾūd 3581)
سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ يَا أَيُّهَا النَّاسُ مَنْ عَمِلَ لَنَا عَلَى عَمَلٍ فَكَتَمَنَا مِخْيَطًا فَهُوَ يَأْتِي بِهِ يَوْمَ الْقِيَامَةِ فَقَامَ رَجُلٌ مِنَ الْأَنْصَارِ كَأَنِّي أَرَاهُ فَقَالَ يَا رَسُولَ اللهِ اقْبَلْ عَنِّي عَمَلَكَ قَالَ وَمَا لَكَ ؟ قَالَ سَمِعْتُكَ تَقُولُ الَّذِي قُلْتَ قَالَ وَأَنَا أَقُولُهُ الْآنَ مَنِ اسْتَعْمَلْنَاهُ عَلَى عَمَلٍ فَلْيَجِئْ بِقَلِيلِهِ وَكَثِيرِهِ فَمَا أُوتِيَ مِنْهُ أَخَذَ وَمَا نُهِيَ عَنْهُ انْتَهَى