It is narrated from Sayyidah Asma' bint Yazid (may Allah be pleased with her) that the Messenger of Allah (peace and blessings be upon him) sat in a gathering and warned the people of the Dajjal; then the narrator narrated the complete hadith.
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 20817