صحيح ابن خزيمه
Sahih Ibn Khuzaymah
جماع أبواب الأفعال المباحة فى الصلاةChapters on Permissible Acts in Prayer
(325) بَابُ الرُّخْصَةِ لِلْمُصَلِّي فِي مُرَافَقَةِ غَيْرِهِ مِنَ الْمُصَلِّينَ وَالنَّظَرِ إِلَيْهِمْ،325 Chapter: Permission for the Worshipper to Accompany Others in Prayer and Look at Them.
Hadith Q872
هَلْ يُتِمُّونَ صَلَاتَهُمْ أَمْ لَا، لِيَأْمُرَهُمْ بَعْدَ الْفَرَاغِ مِنَ الصَّلَاةِ بِمَا يَجِبُ عَلَيْهِمْ مِنْ إِتْمَامِ الصَّلَاةِ
Whether they are performing their prayer completely and correctly or not? So that after the completion of the prayer, he can inform them of the necessary issues regarding the completion of the prayer.
