As for the report regarding the prayer on the Day of Ghadir Khumm and the reward mentioned for fasting it, our Sheikh Muhammad ibn al-Hasan (may Allah سبحانه وتعالى be pleased with him) did not authenticate it. He stated that it comes through Muhammad ibn Musa al-Hamdani, who was a liar and untrustworthy. Any report that our Sheikh (may Allah سبحانه وتعالى sanctify his soul) did not authenticate or deem correct is, in our view, to be discarded and considered unreliable.