4. Muhammad ibn Yahya has narrated from Muhammad ibn al-Hassan, from Ali ibn al-Hakam from al-‘Ala’ ibn Razin from Muhammad ibn Muslim who has said the following: “I once asked abu ‘Abd Allah عليه السلام, ’Can a fasting person smell sweet basil and perfumes?’ He (the Imam) said, ‘It is not harmful.’” It is narrated that he (the Imam) would not smell sweet basil because of his dislike to enjoy such pleasure.