Yahya related to me from Malik from Hisham ibn Urwa that hisfather used to recite behind the imam when the imam did not recitealoud. (PT)
App reference (PT): Book 3, Hadith 42 (PT)
USC-MSA web (English) reference: Book 3, Hadith 42 (PT)
Arabic reference (PT): Book 3, Hadith 189 (PT)