Muaz bin Jabal used to pray with the Prophet ﷺ and then return to lead his people in prayer. One night he led them in the evening prayer and recited Surat al-Baqarah. A man broke off from the prayer, and Muaz seemed to speak critically of him. When word of this reached the Prophet ﷺ, he said three times, "A troublemaker, a troublemaker, a troublemaker," or he said, "One who drives people away, one who drives people away, one who drives people away." He then instructed Muaz to recite two surahs from the middle portion of the Mufassal.Amr said, "I do not remember which two they were."
حدثني محمد بن بشار قال حدثنا غندر قال حدثنا شعبة عن عمرو قال سمعت
كان معاذ بن جبل يصلي مع النبي ﷺ ثم يرجع فيؤم قومه فصلى العشاء فقرأ بالبقرة فانصرف الرجل فكأن معاذا تناول منه فبلغ النبي ﷺ فقال فتان فتان فتان ثلاث مرار أو قال فاتنا فاتنا فاتنا وأمره بسورتين من أوسط المفصل قال عمرو لا أحفظهما