Muwatta Malik 280
موطأ مالك#280SahihYahya related to me from Malik that Abd ar-Rahman ibn al-Qasim said, "I heard Abdullah ibn Amir ibn Rabia say, 'I sometimes pray witr while hearing the iqama, or after the break of dawn.' " Abd ar-Rahman was not certain which he said
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Salim al-HilaliMaqtu Sahih
In-book reference: 7:27