Sahih al-Bukhari 3117
Book 57: One-fifth of Booty to the Cause of Allah (Khumus)
Arabic
حَدَّثَنَا مُحَمَّدُ بْنُ سِنَانٍ، حَدَّثَنَا فُلَيْحٌ، حَدَّثَنَا هِلاَلٌ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ أَبِي عَمْرَةَ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " مَا أُعْطِيكُمْ وَلاَ أَمْنَعُكُمْ، أَنَا قَاسِمٌ أَضَعُ حَيْثُ أُمِرْتُ ".
English translation
Abu Huraira:Allah's Messenger (ﷺ) said, "Neither do I give you (anything) nor withhold (anything) from you, but I am just a distributor (i.e. Qasim), and I give as I am ordered
Reference: Sahih al-Bukhari 3117, Book of One-fifth of Booty to the Cause of Allah (Khumus). English translation by Dr. Muhammad Muhsin Khan.