(5) The Book of Mosques and Places of Prayer
كتاب الْمَسَاجِدِ وَمَوَاضِعِ الصَّلاَةِ
(19) Chapter: As-Sahw (forgetfulness) in prayer and prostrating to compensate for it
(19) باب السَّهْوِ فِي الصَّلاَةِ وَالسُّجُودِ لَهُ ‏
Sahih Muslim 572 d 

This hadith has been narrated by Mansur with the same chain of transmitters with the words:

He should aim at what is correct and complete."
حَدَّثَنَاهُ إِسْحَاقُ بْنُ إِبْرَاهِيمَ، أَخْبَرَنَا عُبَيْدُ بْنُ سَعِيدٍ الأُمَوِيُّ، حَدَّثَنَا سُفْيَانُ، عَنْ مَنْصُورٍ، بِهَذَا الإِسْنَادِ وَقَالَ ‏ "‏ فَلْيَتَحَرَّ الصَّوَابَ ‏"‏ ‏.‏
Reference : Sahih Muslim 572d
In-book reference : Book 5, Hadith 115
USC-MSA web (English) reference : Book 4, Hadith 1171
  (deprecated numbering scheme)