It is narrated from Sayyiduna Ali (may Allah be pleased with him) in a marfu’ form that whoever relates a false dream will be made to tie a knot in a grain of barley on the Day of Resurrection (he will be ordered to do so).
Hadith Referenceمسند احمد / مسند الخلفاء الراشدين / 694
Hadith Gradingحکم دارالسلام:صحيح لغيره ، وهذا إسناد ضعيف لضعف عبدالأعلى