Muhammad b. al-Munkadir told that he saw Jabir b. `Abdallah swearing by God that Ibn as-Sayyad was the dajjal, and when he expressed surprise that he should, swear by God, he replied that he had heard `Umar swearing to that in the Prophet's presence without the Prophet making any objection to it. (Bukhari and Muslim.)
Hadith Referenceمشكوة المصابيح / كتاب الفتن / 5500
Hadith Gradingالألبانی:مُتَّفق عَلَيْهِ | زبیر علی زئی:متفق عليه
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «متفق عليه، رواه البخاري (7355) و مسلم (94/ 2929)»