Abu Tufail says that I once asked Sayyiduna Ibn Abbas (may Allah be pleased with them), "Your people think that the Prophet (peace and blessings be upon him) performed Sa'i between Safa and Marwah while sitting on a camel, and that this is Sunnah?" Sayyiduna Ibn Abbas (may Allah be pleased with them) replied: "These people say something correct and something incorrect." I asked, "What is correct and what is incorrect?" He said: "It is correct that the Prophet (peace and blessings be upon him) performed Sa'i while sitting on a camel, but to consider it Sunnah is incorrect. In reality, people would not move away from the Prophet (peace and blessings be upon him), nor could they be made to move away, so the Prophet (peace and blessings be upon him) performed Sa'i while sitting on a camel so that they could hear his words, see him, and their hands would not reach the Prophet (peace and blessings be upon him)."