Muwatta Malik 188

Arabic

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ أَبِيهِ، أَنَّهُ كَانَ يَقْرَأُ خَلْفَ الإِمَامِ فِيمَا لاَ يَجْهَرُ فِيهِ الإِمَامُ بِالْقِرَاءَةِ ‏.‏

Translation

Yahya related to me from Malik from Hisham ibn Urwa that his father used to recite behind the imam when the imam did not recite aloud

Authenticity

Sahih · Salim al-Hilali

Reference