The Book of Drinks (Kitab Al-Ashriba) 
Muslim :: Book 23 : Hadith 5014
Abu Sa'id (Khudri) reported that Allah's Messenger (may peace be upon him) forbade from turning the waterskins upside down and drinking from its mouth.
The Book of Drinks (Kitab Al-Ashriba)
Muslim :: Book 23 : Hadith 5014
Abu Sa'id (Khudri) reported that Allah's Messenger (may peace be upon him) forbade from turning the waterskins upside down and drinking from its mouth.