5-21 Muhammad ibn al-Hassan - may God be pleased with him - narrated that Sa’ed ibn Abdullah quoted Ahmad ibn Muhammad ibn Isa, on the authority of Al-Qasim ibn al-Hassan ibn Ali ibn Yaqtayn, on the authority of Ibn Abi Najran, and Ja’far ibn Suleiman, on the authority of Al-Ala’ ibnRazin, on the authority of Abi Hamzih al-Sumaly that Abu Ja’far al-Baqir (MGB) said, “Islam is founded upon five pillars: saying the prayers; giving the alms-tax; going on the Hajj pilgrimage to the House of God; fasting in the month of Ramazan; and the Mastery of us - the members of the Holy Household. God has granted permission regarding four of them, but has not granted any permission regarding Mastery. Whoever doesn’t have any property doesn’t have to pay the alms-tax. Whoever doesn’t have any money doesn’t have to go on the Hajj pilgrimage. Whoever is ill can postpone saying his prayers and not fast during the month of Ramazan. However, our Mastery holds whether you are ill or not and whether you have property or not, it is necessary (and incumbent.)”