Sahih al-Bukhari Hadith 18 – Volume 6, Book 60

English

Volume 6, Book 60, Number 18:
Narrated Ibn Umar:
While some people were offering Fajr prayer at Quba' (mosque), some-one came to them and said,
"Tonight some Qur'anic Verses have been revealed to the Prophet and he has been ordered to face the
Ka'ba (at Mecca) (during prayers), so you too should turn your faces towards it." At that time their
faces were towards Sham (Jerusalem) so they turned towards the Ka'ba (at Mecca).