Sayyiduna Sahl bin Sa'd al-Sa'idi (may Allah be pleased with him) narrates: Sayyiduna Abbas bin Abd al-Muttalib (may Allah be pleased with him) asked the Prophet (peace and blessings be upon him) for permission to emigrate, so the Prophet (peace and blessings be upon him) said to him: "O uncle, stay where you are, for Allah Almighty will conclude the emigration through you just as He concluded prophethood through me."
Abu Ya'la and al-Tabarani recorded it; its chain contains Abu Mus'ab Isma'il bin Qays, who is matruk (abandoned).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب المناقب / 15471