Al-Matalib al-'Aliyah 4518 — Mention of Ibn Sayyad and the uncertainty

It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that he said: "When the Dajjal comes forth, he will come out from the direction of the East. His armies and his outposts will be very numerous, and no one will be able to reach him except one who says, 'I have come as an envoy.' So a man will come and say, 'I am an envoy.' When the Dajjal sees him, he will say: 'O son of Adam! Do you not know that I am your Lord?' He will reply: 'Certainly not! Rather, you are the enemy of Allah, the Dajjal.' The Dajjal will say: 'Then I am going to kill you.' The man will say: 'Even if you kill me.' Then he will send for a saw, place it between his two legs (on the trunk) and saw him into two pieces. Then he will say to the people around him: 'What do you think if I bring him back to life?' They will say: 'Then we will be certain that you are our Lord.' So he will bring him back to life and say to him: 'O son of Adam! You used to claim that I am not your Lord.' The man will say: 'The complete insight and certainty that I have now gained about your being the Dajjal, I never had before.' The Dajjal will say: 'Now I will slaughter you.' He will say: 'Even if you slaughter me.' Then he will want to slaughter him but will not find the power to do so. So the man will say from beneath him: 'If you are truthful in your claim, then slaughter me and show it.' At that very moment his armies will fall into doubt about him, and during this Isa bin Maryam (peace be upon him) will descend. When the Dajjal sees him and perceives his scent, he will begin to melt just as lead melts."
The chain of this report is hasan (good). Imam Musaddad narrated it in his Musnad, and its basis is found in Sahih al-Bukhari [hadith: 1882] and Sahih Muslim [hadith: 2938] in the story narrated from Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him); however, with the simile of melting lead and differences in some words, these routes strengthen one another.