Muḥammad b. ʿAlī (b.) Mājīlawayh narrated to us, saying that Muḥammad b. Yaḥyā al-ʿAṭṭār narrated to him among others, from Aḥmad b. Muḥammad b. ʿĪsā, from al-Ḥasan b. ʿAlī b. Faḍḍāl, from ʿAlī b. ʿAbd al-ʿAzīz, who said: “Abū ʿAbd Allāh عليه السلام said to me: “May I inform you—without doubt—of the pillar of Islam and its part, its peak and its pinnacle?,” so I replied: “Yes,” so he continued: “Its pillar is prayer and its part is the alms-tax, and its peak and pinnacle are struggle in the way of Allāh. May I inform you of the gates to that which is good? Fasting is a shield (from the Fire).”