مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2685
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated from Ibn 'Abbas (رضي الله عنه) that the Prophet (ﷺ) said: "Whoever sees something in his leader that he dislikes, let him be patient, for no one differs a handspan from the main body of the Muslims (jama'ah) and dies, but his death will be a death of Jahiliyyah."
Musnad Ahmad 2702Its isnad is saheeh, al-Bukhari (7053) and Muslim (1849)]