Sahih Muslim 2408

حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ حَدَّثَنَا لَيْثٌ عَنْ بُكَيْرٍ عَنْ بُسْرِ بْنِ سَعِيدٍ عَنْ ابْنِ السَّاعِدِيِّ الْمَالِكِيِّ أَنَّهُ قَالَ اسْتَعْمَلَنِي عُمَرُ بْنُ الْخَطَّابِ رَضِيَ اللَّهُ عَنْهُ عَلَى الصَّدَقَةِ فَلَمَّا فَرَغْتُ مِنْهَا وَأَدَّيْتُهَا إِلَيْهِ أَمَرَ لِي بِعُمَالَةٍ فَقُلْتُ إِنَّمَا عَمِلْتُ لِلَّهِ وَأَجْرِي عَلَى اللَّهِ فَقَالَ خُذْ مَا أُعْطِيتَ فَإِنِّي عَمِلْتُ عَلَى عَهْدِ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَعَمَّلَنِي فَقُلْتُ مِثْلَ قَوْلِكَ فَقَالَ لِي رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِذَا أُعْطِيتَ شَيْئًا مِنْ غَيْرِ أَنْ تَسْأَلَ فَكُلْ وَتَصَدَّقْ

Ibn al-Sa'di Maliki reported: 'Umar b. Khattab (Allah be pleased with him) appointed me as a collector of Sadaqa. When I had finished that (the task assigned to me) and I handed over that to him (to 'Umar), he commanded me to (accept) some remuneration (for the work). I said: I performed this duty for Allah and my reward is with Allah. He said: Take whatever has been given to you, for I also performed this duty during the time of the Messenger of Allah ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ). He assigned me the task of a collector and I said as you say, and the Messenger of Allah ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) said to me: When you are given anything without your begging for it, (then accept it), eat it and give it in charity.