The Book of Drinks (Kitab Al-Ashriba) 
Muslim :: Book 23 : Hadith 5015
Abu Sa'id Khudri reported that Allah's, Messenger (may peace he upon him) forbade from turning the waterskins upside down and drinking from their mouths.
The Book of Drinks (Kitab Al-Ashriba)
Muslim :: Book 23 : Hadith 5015
Abu Sa'id Khudri reported that Allah's, Messenger (may peace he upon him) forbade from turning the waterskins upside down and drinking from their mouths.