Sunan an-Nasa'i, hadith 281

أَخْبَرَنَا مُحَمَّدُ بْنُ مَنْصُورٍ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنْ مِسْعَرٍ، عَنِ الْمِقْدَامِ بْنِ شُرَيْحٍ، عَنْ أَبِيهِ، قَالَ سَمِعْتُ عَائِشَةَ، - رضى الله عنها - تَقُولُ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يُنَاوِلُنِي الإِنَاءَ فَأَشْرَبُ مِنْهُ وَأَنَا حَائِضٌ ثُمَّ أُعْطِيهِ فَيَتَحَرَّى مَوْضِعَ فَمِي فَيَضَعُهُ عَلَى فِيهِ ‏.‏

It was narrated from Al-Miqdam bin Shuraih that his father said:"I heard 'Aishah say: 'The Messenger of Allah (ﷺ) would hand me the vessel and I would drink from it, while I was menstruating, then I would give it to him and he would look for the place where I had put my mouth and put that to his mouth