Sunan Ibn Majah, Volume 5, Book 35, Hadith 3902 (DarusSalam) ⓘ
It was narrated from Jabir that the Messenger of Allah said: “Whoever sees me in a dream has (really) seen me, for Satan cannot appear in my form.”
حَدَّثَنَا مُحَمَّدُ بْنُ رُمْحٍ، أَنْبَأَنَا اللَّيْثُ بْنُ سَعْدٍ، عَنْ أَبِي الزُّبَيْرِ، عَنْ جَابِرٍ، عَنْ رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ أَنَّهُ قَالَ " مَنْ رَآنِي فِي الْمَنَامِ فَقَدْ رَآنِي إِنَّهُ لاَ يَنْبَغِي لِلشَّيْطَانِ أَنْ يَتَمَثَّلَ فِي صُورَتِي " .
also referenced under: Hadith 3902 (Reference) & Book 35, Hadith 10 (In-Book)