It is narrated from Sayyiduna Jabir (may Allah be pleased with him) that when the Prophet (peace and blessings be upon him) intended to leave Sayyiduna Ali behind, he said, "If you leave me behind and go, what will people say about me?" The Prophet (peace and blessings be upon him) said: "Are you not pleased that your relation to me is like that of Sayyiduna Harun to Sayyiduna Musa? However, there will be no prophet after me."
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 14638
Hadith Gradingحکم دارالسلام:صحيح لغيره، وهذا إسناد ضعيف، شريك النخعي سيئ الحفظ، وعبدالله بن محمد بن عقيل ليس بذاك القوي