1. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from ibn Mahbub from al-Ahwal from Salam ibn al-Mustanir from abu Ja’far (a.s.) who has said the following: “The Messenger of Allah has said, ‘For every form of worship there is a strong desire and willingness, then it reduces. Whoever’ s worship falls within my tradition and practice, he has found the right guidance, and whoever is against my tradition is lost and his deeds are a total loss. I, however, pray, sleep, fast, eat, laugh and weep. Whoever dislikes my tradition and practice is not of my people.’ He has said, ‘Death is a sufficient preacher, certainty is enough wealth and worship is a complete occupation.’”