وَفِي رِوَايَةٍ لِأَحْمَدَ , وَالنَّسَائِيِّ وَابْنِ خُزَيْمَةَ : { لَا يَجْهَرُونَ بِبِسْمِ اَللَّهِ اَلرَّحْمَنِ اَلرَّحِيم ِ } 1
In another narration from Ahmad, an-Nasa'i and Ibn Khuzaimah: "They never used to recite Bismillahir-Rahmanir-Rahim aloud."