مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3564
Musnad of Abdullah bin Mas'ood
It was narrated that Shaqeeq said: ‘Abdullah used to come out to us and say: I was told about you being here, and nothing kept me from coming out to you but the fact that I did not want to bore you. The Messenger of Allah (ﷺ) used to choose the right time to exhort us because he did not want to bore us.
Musnad Ahmad 3587lts isnad is saheeh, al-Bukhari (6411) and Muslim (2821)]