Hadith.3117 - Abu Abdullah عليه السلام and Abu Al-Hasan Imam Musa ibn Jafar Al-Kadhim عليه السلام said: "Whoever forgets a part or all of the Sa’i (ritual walking) and remembers it, should not turn around and walk away from the direction of Sa’i. Instead, he should go back in reverse to the place where the Sa’i is required to be resumed."