Mishkat al-Masabih
Mishkat al-Masabih 4265
Arabic hadith text
وَعَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ قَالَ: نَهَى رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ عَنِ اخْتِنَاثِ الْأَسْقِيَةِ. زَادَ فِي رِوَايَةٍ: وَاخْتِنَاثُهَا: أَنْ يُقْلَبَ رَأْسُهَا ثُمَّ يُشْرَبَ مِنْهُ
Translation
Abu Said al-Khudri reported that the Messenger of Allah ﷺ forbade bending the mouths of waterskins to drink from them. One version adds: This means turning their mouths upside down and drinking from them.