Abu al-Minhal narrated that Sayyiduna Iyas bin Abd al-Muzani (may Allah be pleased with him) - who was one of the Companions of the Prophet (peace and blessings be upon him) - narrated that the Prophet (peace and blessings be upon him) forbade selling water.
Hadith Referenceالمعجم الكبير للطبراني / باب الألف / 778