Hadith 4264

Ibn ‘Abbas said God’s messenger forbade drinking from the mouth of a water-skin. (Bukhari and Muslim.)

وَعَنِ ابْنِ عَبَّاسٍ قَالَ نَهَى رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ عَن الشّرْب من قي السقاء

Reference: 5642640
In-book reference: Book 21, Hadith 4264