Ja'far bin Iyas, may Allah have mercy on him, wrote in his will: "I bear witness that there is no deity except Allah and that Muhammad (peace be upon him) is Allah's servant and Messenger. The Day of Judgment is coming, there is no doubt about it, and Allah will resurrect (people) from the graves. I accept Allah as my Lord, Islam as my religion, and Muhammad (peace be upon him) as my Prophet. Upon this I will live, upon this I will die, and upon this I will be raised. And I advise my family to fear Allah and to hold fast to Islam at the time of death."