Sahih
Muslim
صحيح مسلم
05
The Book of Mosques and Places of Prayer
كتاب الْمَسَاجِدِ وَمَوَاضِعِ الصَّلاَةِ
Chapter 19: As-Sahw (forgetfulness) in prayer and prostrating to compensate for it
باب السَّهْوِ فِي الصَّلاَةِ وَالسُّجُودِ لَهُ
Sahih Muslim 572 f
This hadith has been reported by Mansur with the same chain of transwitters and he said
" He should aim at what is according to him correct."وَحَدَّثَنَاهُ يَحْيَى بْنُ يَحْيَى، أَخْبَرَنَا فُضَيْلُ بْنُ عِيَاضٍ، عَنْ مَنْصُورٍ، بِهَذَا الإِسْنَادِ وَقَالَ " فَلْيَتَحَرَّ الَّذِي يُرَى أَنَّهُ الصَّوَابُ " .
Grade: Sahih