مُسْنَدُ أَحْمَدَ
Musnad Ahmad 1549
Musnad Abu Ishaq Sa'd bin Abi Waqqas
It was narrated from "Ubaidullah bin Abi Naheek, that Sa"d bin Abi Waqqas said: The Messenger of Allah (ﷺ) said: “He is not one of us who does not feel that the Qur"an is sufficient."
Musnad Ahmad 1549Sahih because of corroborating evidence and its isnad is da'