مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3528
Musnad of Abdullah bin Mas'ood
It was narrated that Ibn Mas'ood (رضي الله عنه) said: I recited to the Messenger of Allah (ﷺ) from Sooratan-Nisa’, and when I reached this verse: “How (will it be) then, when We bring from each nation a witness and We bring you (O Muhammad (ﷺ)) as a witness against these people?” (an-Nisa' 4:41), his eyes flowed with tears.
Musnad Ahmad 3551Its isnad is saheeh, al-Bukhari (4582) and Muslim (800)]