مُسْنَدُ أَحْمَدَ
Musnad Ahmad 4237
Musnad of Abdullah bin Mas'ood
It was narrated that 'Abdullah said: The Messenger of Allah (ﷺ) said: “Let one of you protect his face from the Fire even with half a date.”
Musnad Ahmad 4265Saheeh because of corroborating evidence; its isnad is da’ee