Abū ‘Abdillāh (Imam Sādiq (a.s.)) said: If an insolvent person does not find the means to perform Ḥajjatul Islām, then he should go to the grave of Ḥusain (a.s.) and spend the Day of ‘Arafah next to his grave, for this will suffice as having performed Ḥajjatul Islām. Beware that I said this will suffice as performing Ḥajjatul Islām only for an insolvent person. If a wealthy person has already performed Ḥajjatul Islām and then decides to go for an additional Hajj or ‘Umrah, but misses it because he was hindered in some way or because he was preoccupied with the matters of this world, but goes to (the Ziyārah of) the grave of Ḥusain (a.s.) on the Day of ‘Arafah, this will be sufficient as having performed that (additional) Hajj or ‘Umrah and Allāh will multiply the rewards of this act greatly for him. I asked, “How many Hajj and how many ‘Umrah will be registered for him?” Imam (a.s.) replied, “It cannot be counted.” I asked, “(Is it) one hundred?” Imam (a.s.) replied, “And who can count it?!” I asked, “One thousand?” Imam (a.s.) replied, “And more.” Then the Imam (a.s.) added, “If you count the bounties of Allāh, you will not be able to number them’ (16:18). ‘Verily Allāh is all-pervading, all-knowing” (2:115).