Sunan Ibn Majah, Hadith 2479 ⓘ
It was narrated from Aishah that the Messenger of Allah said: “Surplus water should not be withheld, and neither should surplus water from a well.
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ سَعِيدٍ، حَدَّثَنَا عَبْدَةُ بْنُ سُلَيْمَانَ، عَنْ حَارِثَةَ، عَنْ عَمْرَةَ، عَنْ عَائِشَةَ، قَالَتْ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لاَ يُمْنَعُ فَضْلُ الْمَاءِ وَلاَ يُمْنَعُ نَقْعُ الْبِئْرِ " .
also referenced under: Book 16, Hadith 2573 (In-Book) & Volume 3, Book 16, Hadith 2479 (DarusSalam)