(89) باب بَيْعِ فَضْلِ الْمَاءِ
It was narrated from Iyas that:
the Messenger of Allah forbade selling surplus water. The keeper of al-Wahat sold the surplus water of al-Wahat, and 'Abdullah bin 'Arm disapproved of that.
Reference: Sunan an-Nasa'i 4662
In-book reference: Book 44, Hadith 214
English translation: Vol. 5, Book 44, Hadith 4666