Abdul 'Aziz bin Suhaib عبد العزيز بن صهيب البناني · Chapters on Tafsir

"When the Messenger of Allah (ﷺ) arrived in Al-Madinah, he performed Salat facing the direction of Bait Al-Maqdis (Jerusalem) for sixteen or seventeen months. The Messenger of Allah (ﷺ) longed to face toward the Ka'bah, so Allah, Might and Sublime is He revealed: Verily, WE have seen the turning of your face towards the heave. Surely, We Shall turn your face in the direction of Al-Masjid Al-Haram (2:144). So he faced the direction of the Ka'bah and he longed for…

"They were bowing during Salat Al-Fajr."