7. A number of our people have narrated from Sahl ibn Ziyad from Ahmad ibn Muhammad from who has said the following: “I once asked abu al-Hassan , about a man who comes home from a journey in the month of Ramadan before Zawal (declining of the sun toward the west at noontime) and has not tasted any food as yet. He (the Imam) said, ’He is required to fast.’”