Narrated Abu Huraira: Allah's Apostle said, "One should not prevent others from watering their animals with the surplus of his water in order to prevent them from benefiting by the surplus of grass."
Hadith ReferenceSahih Bukhari / The Book of Tricks / Hadith: 6962
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة