Sunan an-Nasa'i 4663
سنن النسائي#4663Sahihأَخْبَرَنَا إِبْرَاهِيمُ بْنُ الْحَسَنِ، عَنْ حَجَّاجٍ، قَالَ قَالَ ابْنُ جُرَيْجٍ أَخْبَرَنِي عَمْرُو بْنُ دِينَارٍ، أَنَّ أَبَا الْمِنْهَالِ، أَخْبَرَهُ أَنَّ إِيَاسَ بْنَ عَبْدٍ صَاحِبَ النَّبِيِّ صلى الله عليه وسلم قَالَ لاَ تَبِيعُوا فَضْلَ الْمَاءِ فَإِنَّ النَّبِيَّ صلى الله عليه وسلم نَهَى عَنْ بَيْعِ فَضْلِ الْمَاءِ .
Iya bin 'Abd, the companion of the Prophet said:"do not sell surplus water, for the Prophet forbade the sale of surplus water
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiHasan
In-book reference: 44:215