كتاب التفسير
65  
Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh))
Sahih al-Bukhari 4492

Narrated Al-Bara:

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)

حَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، حَدَّثَنَا يَحْيَى، عَنْ سُفْيَانَ، حَدَّثَنِي أَبُو إِسْحَاقَ، قَالَ سَمِعْتُ الْبَرَاءَ ـ رضى الله عنه ـ قَالَ صَلَّيْنَا مَعَ النَّبِيِّ صلى الله عليه وسلم نَحْوَ بَيْتِ الْمَقْدِسِ سِتَّةَ عَشَرَ ـ أَوْ سَبْعَةَ عَشَرَ ـ شَهْرًا، ثُمَّ صَرَفَهُ نَحْوَ الْقِبْلَةِ‏.‏
Reference : Sahih al-Bukhari 4492
In-book reference : Book 65, Hadith 19
USC-MSA web (English) reference : Vol. 6, Book 60, Hadith 19
  (deprecated numbering scheme)