مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2737
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated that Ibn ‘Abbas (رضي الله عنه) said: Some cheese was brought to the Messenger of Allah (ﷺ) during a military campaign and he said: "Where was this made?" They said: In Persia, and we think that there is something from maitah (an animal that was not slaughtered properly) in it. He said: "Stick the knife in it, mention the Name of Allah and eat.”
Musnad Ahmad 2754Hasan because of corroborating evidence; this is a da'eef is