Sa’ad from Ahmad from Imran ibn Muhammad ibn Imran al-Ash'ari from some of our companions who raised it (in isnad) to Abu Abdillah عليه السلام, peace be upon him, who said: Imam al-Sadiq عليه السلام said: “The camel driver (al-jammal) and the mule driver (al-makari) if the travel becomes intense for them, then let them shorten (the prayer) between the two residences, and perform it in full at the residence.”