Muwatta Malik · Hadith 190

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ يَزِيدَ بْنِ رُومَانَ، أَنَّ نَافِعَ بْنَ جُبَيْرِ بْنِ مُطْعِمٍ، كَانَ يَقْرَأُ خَلْفَ الإِمَامِ فِيمَا لاَ يَجْهَرُ فِيهِ بِالْقِرَاءَةِ ‏.‏ قَالَ مَالِكٌ وَذَلِكَ أَحَبُّ مَا سَمِعْتُ إِلَىَّ فِي ذَلِكَ ‏.‏

Yahya related to me from Malik from Yazid ibn Ruman that Nafi ibn Jubayr ibn Mutim used to recite behind the imam when hedid not recite aloud . Malik said, "That is the most preferable to me of what I have heard about the matter

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).