5. It is narrated from him (narrator of the Hadith above) from his father from Fadalah ibn Ayyub from al-Hassan ibn Ziyad al-Sayqal from Fudayl ibn Yasar from abu Ja’far who has said the following: “Abu Ja’far عليه السلام has said, ‘Restraining from worldly matters (sins) is the most intense form of worship.’”