عَنْ عَلِيٍّ وَمُعَاذِ بْنِ جَبَلٍ رَضِيَ اللَّهُ عَنْهُمَا
قَالَا: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «إِذَا أَتَى أَحَدُكُمْ الصَّلَاةَ وَالْإِمَامُ عَلَى حَالٍ فَلْيَصْنَعْ كَمَا يَصْنَعُ الْإِمَامُ»
Ali and Muadh ibn Jabal reported God’s Messenger as saying, “When any of you comes to pray and the imam is at a certain point, he must do as the imam does.”