Muwatta Malik 460
موطأ مالك#460SahihYahya related to me from Malik from Abdullah ibn Dinar that Abdullah ibn Umar said, "On one occasion when the people were praying subhat Quba a man came to them and said, 'A piece of Qur'an was sent down to the Messenger of Allah, may Allah bless him and grant him peace, last night, and he was ordered to face the Kaba, so face it.' They had been facing ash-Sham, so they turned round and faced the Kaba
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Salim al-HilaliSahih
In-book reference: 14:6