Reward of shouldering the coffin of a person

1. It was narrated to me by Muhammad b. al-Hassan from Muhammad b. al-Hassan al-Saffar from al-Abbas b. Ma’ruf from Sa’dan b. Muslim from Sulayman b. Salih from his father from Abi Abdillah عليه السلام who said: “One who shoulders the coffin of a person, Allah will forgive his twenty-five greater sins and one who shoulders the coffin from all four sides, Allah will purify him of his sins.”