The Prophet ﷺ mentioned Dajjal and said, "The son of Mary will kill him at the gate of Ludd."
حدثنا سفيان بن عيينة حدثنا الزهري عن عبد الله بن عبيد الله بن ثعلبة عن عبد الرحمن بن يزيد قال سمعت
أن النبي ﷺ ذكر الدجال فقال يقتله ابن مريم بباب لد
Its isnad is daif because of Ubaydullah bin Abdullah bin Thalaba. Some scholars considered him unknown, and others considered him daif because of his inconsistency in narrating the hadith. Sometimes he says, "from Abdullah bin Yazid," which is an error, and sometimes he says, "from Abdul-Rahman bin Yazid," who is the nephew of Mujammi bin Jariyah and is a trustworthy and excellent narrator. However, the hadith is sahih. Tirmidhi related it, 4/515, no. 2244, in the Book of Tribulations, chapter on what has been mentioned about Isa bin Maryam killing Dajjal, and he said, hasan sahih. Abu Dawud related something similar in the Book of Battles, 4/117, no. 4321. Ibn Majah related it, 2/1357, no. 4075. Muslim related it at length, 4/2253, no. 2137m.