وَعَنْ عُمَرَ رَضِيَ اَللَّهُ عَنِ
النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «لَيْسَ عَلَى مَنْ خَلَفَ اَلْإِمَامَ سَهْوٌ فَإِنْ سَهَا اَلْإِمَامُ فَعَلَيْهِ وَعَلَى مَنْ خَلْفَهُ» رَوَاهُ اَلْبَزَّارُ وَالْبَيْهَقِيُّ بِسَنَدٍ ضَعِيفٍ. 11 ضعيف جدا
The Prophet (sallallahu alayhi wa sallam) said: “There is no (prostrations of) forgetfulness for one who is led (in prayer) by an Imam, but when the Imam forgets, both should then make prostrations due to forgetfulness.”.
Bulugh al-Maram 414, Book 2, The Book of Prayer, Hadith 235. 1 min read