Who is the Imam of the Scholars on the Day of Resurrection?

Al-Hakim narrated that the Prophet, peace and blessings be upon him, said about Mu'adh ibn Jabal, may Allah be pleased with him: "Indeed, he will come on the Day of Resurrection as the leader of the scholars, by a large margin." He was the most knowledgeable of the Ummah concerning lawful and unlawful matters, by the testimony of the Prophet, peace and blessings be upon him, who said: "And the most knowledgeable among them concerning lawful and unlawful matters is Mu'adh ibn Jabal."