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 (ﷺ) 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).
Sahih al-Bukhari Book 65, Hadith 18
← Previous Hadith While some people were offering morning prayer at Quba' a man came to them and said, "A Qur'anic Order has been revealed to Allah's Messenger (ﷺ) tonight that he should face the Ka`ba at Mecca (in prayer), so you too should turn your faces towards it." At that moment their faces were towards Sham (i.e. Jerusalem) (and on hearing that) they turned towards the Ka`ba (at Mecca).

Sahih al-Bukhari Book 65, Hadith 17 Next Hadith → We prayed along with the Prophet (ﷺ) facing Jerusalem for sixteen or seventeen months. Then Allah ordered him to turn his face towards the Qibla (in Mecca):-- "And from whence-so-ever you start forth (for prayers) turn your face in the direction of (the Sacred Mosque of Mecca) Al-Masjid-ul Haram.." (2.149)

Sahih al-Bukhari Book 65, Hadith 19