مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3756
Musnad of Abdullah bin Mas'ood
It was narrated from Ibn Mas'ood (رضي الله عنه) that The Prophet (ﷺ) said: "There is no one among you who does not have his companion from among the angels and from among the jinn." They said: Even you, O Messenger of Allah? He said: “Even me, but Allah helped me against him and he became Muslim, and he does not tell me to do anything but good."
Musnad Ahmad 3779Its isnad is saheeh, Muslim (2814)]