Hadith 5625
Narrated Abu Sa`id Al-Khudri: Allah's Apostle forbade the bending of the mouths of water skins for the sake of drinking from them.
Hadith 5626
Narrated Abu Sa`id Al-Khudri: I heard Allah's Apostle forbidding the drinking of water by bending the mouths of water skins, i.e., drinking from the mouths directly.