3. It is narrated from him (narrator of the Hadith above) from Ali ibn al-Hakam from al-Hassan ibn al-Sari from Abu ‘Abdillah عليه السلام who has said the following: “Do not write, ‘(I begin) in the name of Allah, the Beneficent, the Merciful,’ ‘for so and so’ (in a letter), but it is not an offense to write at the back of the letter, ‘for so and so’.’”