1. Abi رحمه الله and Muhammad b. al-Hassan they said it was narrated to us by Muhammad b. Yahya and Ahmad b. Idrisall of themfrom Muhammad b. Ahmad from Yahya b. ’Imran from al-Sayyari from Abi Abdillah Muhammad b. Ahmad from Yunis b. Ya’qub from al-Sadiq عليه السلام who said: “One who applies perfume at the start of the day while fasting, his intelligence won’t decrease.”