In his will, Najafi gave his son, Mahmoud Marashi Najafi, detailed advice on religious observances and study, good relations with close relatives, mercy to the poor and needy, and not wasting his time. He gave instructions regarding his own burial and grave, and enjoined his son if possible to use some of his wealth as Radd al-Madhaalim (money given to the poor as payment of possible unknown debts) on his father’s behalf, in case he had any dues outstanding.