Chapter on Ruling of the Traveller and the Sick Person Regarding Fasting

And from Sindi ibn al-Rabi, Imam al-Sadiq عليه السلام said: “Concerning the carrier for hire (al-mukari) and the camel driver (al-jammal) who goes back and forth and has no place of stay (residence). Thus, he completes the prayer and fasts in the month of Ramadan.”