Sahih Muslim , Book 4, Hadith 1171 (USC-MSA) ⓘ
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 " .
also referenced under: Book 5, Hadith 115 (In-Book) & Hadith 572 (Reference)