Fatima bint Qays heard the call to prayer one day in Madinah. After the prayer the Prophet ﷺ sat on the pulpit, smiling, and told everyone to stay in their places. He had gathered them, he said, neither for good news nor for a warning, but because Tamim al-Dari, a Christian who had come and accepted Islam, had told him something that matched what he himself used to tell them about the Dajjal.
Tamim had sailed with thirty men of the Lakhm and Judham tribes. A storm tossed them for a month until, at sunset, they reached an island. On it they met a creature so covered in hair that they could not tell its front from its back. It called itself al-Jassasa and sent them to a man waiting in a building, a dayr. Inside was the largest man they had ever seen, bound tight: hands tied to his neck, iron fetters from his knees to his ankles.
The bound man asked about the date palms of Baysan, the water of Lake Tiberias, the spring of Zughar and the Prophet ﷺ. Then he said: "I am the Messiah", meaning the Dajjal, and that he would soon be let out to travel the earth, entering every town except Makkah and Madinah. The Prophet ﷺ struck the pulpit with his stick: "This is Tayba, this is Tayba", meaning Madinah. Then he said: "He is in the sea of Sham, or the sea of Yemen. No, rather from the direction of the east he is", and he pointed toward the east.
Fatima bint Qays · by inclusion in Sahih Muslim
حَدَّثَنِي أَنَّهُ رَكِبَ فِي سَفِينَةٍ بَحْرِيَّةٍ مَعَ ثَلاَثِينَ رَجُلاً مِنْ لَخْمٍ وَجُذَامَ فَلَعِبَ بِهِمُ الْمَوْجُ شَهْرًا فِي الْبَحْرِ ثُمَّ أَرْفَئُوا إِلَى جَزِيرَةٍ فِي الْبَحْرِ حَتَّى مَغْرِبِ الشَّمْسِ ... فَلَقِيَتْهُمْ دَابَّةٌ أَهْلَبُ كَثِيرُ الشَّعَرِ لاَ يَدْرُونَ مَا قُبُلُهُ مِنْ دُبُرِهِ مِنْ كَثْرَةِ الشَّعَرِ ... فَقَالَتْ أَنَا الْجَسَّاسَةُ ... انْطَلِقُوا إِلَى هَذَا الرَّجُلِ فِي الدَّيْرِ ... فَإِذَا فِيهِ أَعْظَمُ إِنْسَانٍ رَأَيْنَاهُ قَطُّ خَلْقًا وَأَشَدُّهُ وِثَاقًا مَجْمُوعَةٌ يَدَاهُ إِلَى عُنُقِهِ مَا بَيْنَ رُكْبَتَيْهِ إِلَى كَعْبَيْهِ بِالْحَدِيدِ ... أَلاَ إِنَّهُ فِي بَحْرِ الشَّامِ أَوْ بَحْرِ الْيَمَنِ لاَ بَلْ مِنْ قِبَلِ الْمَشْرِقِ مَا هُوَ مِنْ قِبَلِ الْمَشْرِقِ مَا هُوَ ... وَأَوْمَأَ بِيَدِهِ إِلَى الْمَشْرِقِ
He told me that he boarded a sea-going ship with thirty men of Lakhm and Judham. The waves tossed them about at sea for a month, then they reached an island in the sea at sunset… A beast met them, thick with hair, so hairy they could not tell its front from its back… It said: "I am al-Jassasa"… "Go to this man in the monastery (al-dayr)"… In it was the biggest man we had ever seen, and the most tightly bound: his hands tied to his neck, iron between his knees and his ankles… [The Prophet ﷺ said:] "He is in the sea of Sham, or the sea of Yemen. No, rather from the direction of the east he is, from the direction of the east he is…" and he pointed with his hand toward the east.
Full hadith on Sunnah.com ↗Fatima bint Qays · al-Albani, Ahmad Shakir; al-Tirmidhi: sahih gharib
أَنَّ نَاسًا مِنْ أَهْلِ فِلَسْطِينَ رَكِبُوا سَفِينَةً فِي الْبَحْرِ فَجَالَتْ بِهِمْ حَتَّى قَذَفَتْهُمْ فِي جَزِيرَةٍ مِنْ جَزَائِرِ الْبَحْرِ فَإِذَا هُمْ بِدَابَّةٍ لَبَّاسَةٍ نَاشِرَةٍ شَعْرَهَا ... وَلَكِنِ ائْتُوا أَقْصَى الْقَرْيَةِ ... فَإِذَا رَجُلٌ مُوثَقٌ بِسِلْسِلَةٍ
…some people of Palestine boarded a ship at sea; it drifted with them until it cast them onto one of the islands of the sea. There they found a creature covered in its hair, its hair spread out… "Go to the far end of the village"… and there was a man bound with a chain.
Full hadith on Sunnah.com ↗