Musnad Ahmad 33:843

Muhammad ibn Ja‘far narrated to us, Shu‘bah narrated to us, from ‘Amr ibn Dinar, who said: I heard Jabir saying: Mu‘adh used to pray with the Messenger of Allah (peace and blessings of Allah be upon him), then he would return and lead his people in prayer. He said: So he led them in the ‘Isha’ prayer one time, and he recited Surah Al-Baqarah. A man intended [to leave], so he departed. Mu‘adh began to speak against him. That reached the Prophet (peace and blessings of Allah be upon him), so he said: "Are you a tempter, O Mu‘adh? Are you a tempter, O Mu‘adh? Are you a tempter, O Mu‘adh?" — or he said: "A tempter, a tempter, a tempter." And he commanded him [to recite] two surahs from the middle of the Mufassal. ‘Amr said: "I do not remember them."