It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: The greatest lie is that a man attributes his lineage to someone other than his father, or he describes a dream which he did not see, or he changes the seeds of the land.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 5998
Hadith Gradingحکم دارالسلام:إسناده صحيح ، خ: 7043.