عن أبي مَسْعُودٍ الْجُرَيْرِيُّ قَالَ: سَأَلَ رَجُلٌ الْحَسَنَ عَنْ قِرَاءَةِ بِسْمِ اللهِ الرَّحْمَنِ الرَّحِيمِ؟ قَالَ: تِلْكَ صُدُورُ الرَّسَائِلِ.
From Abu Mas‘ud al-Jurayri who said: A man asked al-Hasan about the recitation of “Bismillah al-Rahman al-Rahim.” He said: That is at the beginning of letters.