2. A number of our people have narrated from Ahmad ibn Muhammad ibn Khalid from his father from a man from the people of al-Kufah called abu Muhammad from ‘Amr ibn Shamir from Jabir from abu Ja’far عليه السلام who has said the following: “The smiling of a man for his brother (in belief) is a good deed, so also is removing a speck from him (his eyes). Allah is not worshipped with anything more beloved to Him than bringing joy to the heart of a believer.”