‏فضائل الصحابة‏ : Hadeeth No:5883 This hadith has been transmitted on the authority of Zuhri, and there is a clear mention of the stories of ox and goat (and the words are): I believe in it and so do Abu Bakr and Umar, but they were not at that time present there....

‏الأشربة : Hadeeth No:5015 Abu Sa'id Khudri reported that Allaah's, Messenger (may peace he upon him) forbade from turning the waterskins upside down and drinking from their mouths....