Sahih Muslim
The Book of Menstruation (Kitab Al-Haid)
Book Number: 003 / Hadith Number: 691
Ja'far b. Amr b. Umayya al-Damari reported on the authority of his father who said: I saw the Messenger of Allah (may peace be upon him) take slices from goat's shoulder, and then eat them, and then offer prayer without having performed ablution.