(527) بَابُ صَدْرِ الرَّسَائِلِ: بِسْمِ اللهِ الرَّحْمَنِ الرَّحِيمِ
Abu Mas'ud al-Jurayri related to him that a man asked al-Hasanabout reading, "In the Name of Allah, the All-Merciful, Most Merciful."He said, "That should be put at the beginning of letters." (ID)
Reference (ID): Al-Adab Al-Mufrad 1123 (ID)
In-book reference (ID): Book 45, Hadith 7 (ID)
English translation (ID): Book 45, Hadith 1123 (ID)