Iron : God Almighty said : “ Iron was sent down in it with great power and benefits to people. ” Iron is money, strength and honor, and eating it with bread is moderation and tolerance for the sake of pension, and its weakness is an absence, and iron is a victory . And it was narrated that a man came to Ja`far al-Sadiq, peace be upon him, and said : I saw as if my Lord gave me an iron and gave me a drink of white vinegar, and he said : You know your son the work of David, peace be upon him, and vinegar is a permissible money in a disease in which you will sleep long and die in a will .