Mishkat al-Masabih 4 Prayer كتاب الصلاة 550

وَعَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «يُصَلُّونَ لَكُمْ فَإِنْ أَصَابُوا فَلَكُمْ وَإِنْ أَخْطَئُوا فَلَكُمْ وَعَلَيْهِمْ» . رَوَاهُ الْبُخَارِيُّ

Abu Huraira reported God’s Messenger as saying, “They lead you in prayer, and if they do it properly you will reap a reward, but if they make mistakes you will reap a reward and they will be held responsible. Bukhari transmitted it.