Sayyiduna al-Nu'man bin Bashir (may Allah be pleased with him) says: I heard the Prophet (peace and blessings be upon him) say: "Before the Hour there will be liars."
Imam al-Tabarani recorded it, and its narrators are the narrators of the Sahih, except for Jandal bin Waliq, and he is thiqah (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الفتن - أعاذنا الله منها / 12493