صَحِيحُ مُسْلِمٍ
Sahih Muslim 572 e
The Book of Mosques and Places of Prayer
As-Sahw (forgetfulness) in prayer and prostrating to compensate for it
حَدَّثَنَاهُ مُحَمَّدُ بْنُ الْمُثَنَّى، حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، عَنْ مَنْصُورٍ، بِهَذَا الإِسْنَادِ وَقَالَ فَلْيَتَحَرَّ أَقْرَبَ ذَلِكَ إِلَى الصَّوَابِ .
This hadith has been narrated by Mansur with the same chain of transmitters and said: " He should aim at correctness and that is right."
Sahih Muslim, 572 eSahihصحيح