3-48 Ali ibn Ahmad ibn Aba Abdullah al-Barqy - may God have Mercy upon him - narrated that his father quoted his grandfather Ahmad ibn Aba Abdullah, on the authority of his father, on the authority of Ali ibn Asbat, on the authority of his uncle Yaqoob ibn Salim who linked up this tradition through a chain of narrators to the Commander of the Faithful Imam Ali (MGB) that God’s Prophet (MGB) in a lengthy tradition said, “Three people should not ride on a riding animal together. Should they do so, the one who is sitting ahead of the other two is cursed.”