Sahih Muslim · Hadith 1306
The Book of Mosques and Places of Prayer - كتاب الْمَسَاجِدِ وَمَوَاضِعِ الصَّلاَةِ
حدثناه محمد بن المثنى، حدثنا محمد بن جعفر، حدثنا شعبة، عن منصور، بهذا الإسناد وقال " فليتحر أقرب ذلك إلى الصواب " .
This hadith has been narrated by Mansur with the same chain of transmitters and said: " He should aim at correctness and that is right."
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).