It is narrated from Hazrat Anas (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: Whoever deliberately attributes a lie to me, he should make his abode in Hell. He said this twice.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 12154
Hadith Gradingحکم دارالسلام:إسناده صحيح ، خ : 108 ، م فى المقدمة : 2