Muwatta Malik 399
موطأ مالك#399SahihYahya related to me from Malik that Abdullah ibn Dinar said, "I saw Abdullah ibn Umar stop by the grave of the Prophet, may Allah bless him and grant him peace, and ask for blessings on the Prophet, may Allah bless him and grant him peace, and on Abu Bakr and Umar
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: 9:74