Muwatta Malik 1764
موطأ مالك#1764SahihMalik related to me from a reliable source of his from Bukayr ibn Abdullah ibn al-Ashajj from Basr ibn Said from Abu Said al-Khudri that Abu Musa al-Ashari said, "The Messenger of Allah, may Allah bless him and grant him peace, said, 'One asks permission three times. If you are given permission, then enter. If not, go away
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: 54:2