It is narrated from Hazrat Anas (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: Whoever sees me in a dream should know that he has indeed seen me, for Satan cannot assume my likeness, and a Muslim's dream is one forty-sixth part of prophethood.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 13849