Muwatta Malik 731
موطأ مالك#731SahihYahya related to me from Malik from a reliable source that Abdullah ibn Umar once entered ihram at Ilya (Jerusalem)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Salim al-HilaliMauquf Sahih
In-book reference: 20:27