Volume 9, Book 91, Number 357:
Narrated ‘Abdullah bin ‘Umar:
While the people were at Quba offering the morning prayer, suddenly a person came to them say –
ing, “Tonight Divine Inspiration has been revealed to Allah’s Apostle and he has been ordered to face
the Ka’ba (in prayers): therefore you people should face it.” There faces were towards Sham, so they
turned their faces towards the Ka’ba (at Mecca).