Sahih Muslim
The Book of Prayers (Kitab Al-Salat)
Book Number: 004 / Hadith Number: 1894
Umm Bisham hint Haritha b. Nu'man said: Our oven and that of the Messenger of Allah (may peace be upon him) was one for two years, or for one year or for a part of a year; and I learnt" Qaf. By the Glorious Qur'an" from no other source than the tongue of Allah's Messenger (may peace be upon him) who used to recite it every Friday on the pulpit when he delivered the sermon to the people.