Anas ibn Malik · The Book of Menstruation and Istihadah

"When one of their womenfolk menstruated, the Jews would not eat or drink with them, or mix with them in their houses. They (the Companions) asked the Prophet of Allah (ﷺ) about that, and Allah, the Mighty and Sublime, revealed the Ayah: They ask you concerning menstruation. Say: "That is an Adha (a harmful thing). So the Messenger of Allah (ﷺ) commanded them to eat and drink with them (menstruating women) and to mix them in their houses, and to…