1. He said: Abul Qasim Ja’far ibn Muhammad ibn Qawlawayh, may Allah bless him with mercy, reported to me from Muhammad ibn Abdullah ibn Ja’far al-Himyari, who reported from his father, who reported from Haroon ibn Muslim, who reported from Mas’adah ibn Ziyad, who said that: When Ja’far ibn Muhammad, peace be upon him, was asked about the verse: ’To Allah belongs the decisive argument.’ (6:149), he said: When there will be the Day of Reckoning, Allah will address (His) slave: "Were you a learned man?" If he says "Yes," Allah will ask: "Did you not act according to your knowledge?" And if he says: "I was not learned," He will say: "Why did you not learn?" and so call him to account. That is the decisive argument of Allah, Most High, against His creatures.