Ash'ath bin Salim says that during the caliphate of Abdullah bin Zubair (may Allah be pleased with him), I heard a man saying that I heard a man at the fair of 'Ukaz saying: "O people! Say La ilaha illallah, you will succeed." And behind him, another man was going, saying: "This person wants to turn you away from your gods." Later, it became known that they were the Prophet Muhammad (peace and blessings be upon him) and Abu Jahl.