It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, who says: I said to the Noble Prophet, peace and blessings be upon him: On the Day of Resurrection, who will be most deserving of your intercession? The Prophet, peace and blessings be upon him, said: O Abu Hurairah! I thought that no one would ask me about this hadith before you, because I have seen your eagerness for hadith. The person who will be most deserving of my intercession on the Day of Resurrection will be the one who says "La ilaha illallah" sincerely and from his heart.