The Messenger of Allah ﷺ said, "Dajjal will emerge, and a man from among the believers will set out toward him. The armed patrols of Dajjal will meet him and ask, 'Where are you headed?'He will reply, 'I am headed toward this man who has appeared.'They will ask him, 'Do you not believe in our lord?'He will answer, 'There is nothing hidden about our Lord.'They will say, 'Kill him.'But some of them will say to others, 'Has your lord not forbidden you to kill anyone without his permission?'So they will take him to Dajjal. When the believer sees him, he will say, 'People, this is Dajjal whom the Messenger of Allah ﷺ mentioned.'Dajjal will then order him to be stretched out and command, 'Seize him and crack his skull.' His back and belly will be beaten severely.Dajjal will ask, 'Do you not believe in me?'The man will reply, 'You are the lying false messiah.'Dajjal will order him to be sawed in half with a saw, from the parting of his hair down between his legs. Then Dajjal will walk between the two pieces and say to him, 'Stand up.' The man will rise upright.Then Dajjal will ask him, 'Do you believe in me?'He will reply, 'It has only increased my insight about you.'Then the man will say, 'People, he will not be able to do this to anyone else after me.'Dajjal will then seize him to slaughter him, but the area between his neck and collarbone will turn to brass, so Dajjal will find no way to harm him. So he will grab him by his hands and feet and hurl him away. The people will think he has thrown him into the Fire, but in reality he will have been cast into Paradise."The Messenger of Allah ﷺ then said, "This man will be the greatest in martyrdom in the sight of the Lord of the worlds."
قال رسول الله ﷺ: يخرج الدجال، فيتوجه قبله رجل من المؤمنين، فتلقاه المسالح مسالح الدجال، فيقولون له أين تعمد؟ فيقول: أعمد إلى هذا الذي خرج، قال: فيقولون له: أوما تؤمن بربنا؟ فيقول: ما بربنا خفاء، فيقولون: اقتلوه، فيقول بعضهم لبعض: أليس قد نهاكم ربكم أن تقتلوا أحدا دونه، قال: فينطلقون به إلى الدجال، فإذا رآه المؤمن قال: يا أيها الناس هذا الدجال الذي ذكر رسول الله ﷺ قال: فيأمر الدجال به فيشبح، فيقول: خذوه وشجوه فيوسع ظهره وبطنه ضربا، قال: فيقول: أو ما تؤمن بي؟ قال: فيقول: أنت المسيح الكذاب، قال: فيؤمر به فيؤشر بالمئشار من مفرقه حتى يفرق بين رجليه، قال: ثم يمشي الدجال بين القطعتين، ثم يقول له: قم فيستوي قائما، قال: ثم يقول له أتؤمن بي؟ فيقول: ما ازددت فيك إلا بصيرة، قال: ثم يقول يا أيها الناس، إنه لا يفعل بعدي بأحد من الناس قال: فيأخذه الدجال ليذبحه، فيجعل ما بين رقبته إلى ترقوته نحاسا فلا يستطيع إليه سبيلا، قال: فيأخذ بيديه ورجليه، فيقذف به، فيحسب الناس أنما قذفه إلى النار، وإنما ألقي في الجنة، فقال رسول الله ﷺ: هذا أعظم الناس شهادة عند رب العالمين.
Muslim narrated it in Fitan and Signs of the Hour (2938:113) from Muhammad bin Abdullah bin Qahzad, who said, Abdullah bin Uthman told us, from Abu Hamza, from Qays bin Wahb, from Abu Wadak, from Abu Saeed Khudri, who mentioned it.