مُسْنَدُ أَحْمَدَ
Musnad Ahmad 4017
Musnad of Abdullah bin Mas'ood
It was narrated that ‘Abdullah said: The Messenger of Allah (ﷺ) said one thing and I say another. I heard the Messenger of Allah (ﷺ) say: “Whoever dies associating anything with Allah will enter Hell.” And I say: Whoever dies not associating anything with Allah will enter Paradise.
Musnad Ahmad 4043Its isnad is saheeh, al-Bukhari (1238) and Muslim (92)]