Salamah bin Shabīb narrated to me, al-Humaydī narrated to us, Sufyān narrated to us, he said I heard Abū Mūsā [Isrā’īl bin Mūsā al-Basrī] saying: ‘Amr bin Ubayd narrated to us before what happened’ [i.e. before he became Mu’tazilī].