Sayyiduna Jabir (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) said: "From beneath these palm trees a man from the people of Paradise will appear before you." The narrator says: Then Sayyiduna Abu Bakr (may Allah be pleased with him) appeared, and we congratulated him on what the Prophet (peace and blessings be upon him) had said. Then, after a little while, the Prophet (peace and blessings be upon him) said: "From beneath these palm trees a man from the people of Paradise will appear." Then Sayyiduna Umar (may Allah be pleased with him) appeared, and we congratulated him on what the Prophet (peace and blessings be upon him) had said. Then the Prophet (peace and blessings be upon him) said: "From beneath these palm trees a man from the people of Paradise will appear. O Allah, if You will, make him Ali!" He said this three times, and then Sayyiduna Ali (may Allah be pleased with him) appeared.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب المناقب / 14685