مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3558
Musnad of Abdullah bin Mas'ood
Shaqeeq said: We were waiting in the mosque for 'Abdullah bin Mas'ood (رضي الله عنه) to come out to us. Yazeed bin Mu'awiyah - i.e., an-Nakha'i - came to us and said: Shall I go and see if he is in the house? Maybe I could bring him out to you. He came out to us and said: I was told about you being here but I do not want to come out to you for fear of boring you. The Messenger of Allah (ﷺ) used to choose the right time to address us for fear of boring us.
Musnad Ahmad 3581Its isnad is saheeh, al-Bukhari (6411) and Muslim (2821)]