Jamil ibn Dur'raj narrated that Imam Sadiq (a.s) said
“Do not abandon starting your letters with “In the Name of God, Most Gracious, Most Merciful “even if you follow it with poetry.”
عن جميل بن دراج: قال
أبو عبد الله (عليه السلام): لا تدع كتابة " بسم الله الرحمان الرحيم " في الكتاب وإن كان بعده شعر.
Similar narrations
Al-Kāfi #2330“Abu ‘Abd Allah (a.s.) has said, ‘Do not ignore the expression, “(I begin) in the name of Allah, the Beneficent, the Merciful,” even if it...