The Case of Prices of Goods

3. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from ibn al-‘Abbas ibn Ma’ruf from al-Hajjal from certain persons of his people from abu Hamzah al-Thumaliy who has said the following: “Ali ibn Al-Husayn عليه السلام, has said, ‘Allah, most Majestic, most Glorious, has assigned an angel who regulates prices by His command.’”