Muwatta Malik 656
موطأ مالك#656SahihYahya related to me from Malik from Nafi that Abdullah ibn Umar used not to fast while travelling
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: 18:27