Sahih al-Bukhari 2353
Book 42: Distribution of Water · Narrated by Abu Huraira
Arabic
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، أَخْبَرَنَا مَالِكٌ، عَنْ أَبِي الزِّنَادِ، عَنِ الأَعْرَجِ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " لاَ يُمْنَعُ فَضْلُ الْمَاءِ لِيُمْنَعَ بِهِ الْكَلأُ ".
English translation
Narrated Abu Huraira:Allah's Messenger (ﷺ) said, "Do not withhold the superfluous water, for that will prevent people from grazing their cattle
Reference: Sahih al-Bukhari 2353, Book of Distribution of Water. English translation by Dr. Muhammad Muhsin Khan.