[Machine] Al-Hajjaj was not from the progeny of the Prophet ﷺ . He had Yahya ibn Yamar with him, so he said to him, "You have lied, O Amir." He said, "Come to me with clear evidence from the Book of Allah to support what you have said, or I will kill you." He said, "{And from his progeny were Dawud, Sulayman, Ayyub, Yusuf, Musa, and Harun}, and {Zakariya, Yahya, and Isa}" [Al-An'am 85]. So Allah informed that Isa is from the progeny of Adam through his mother, and Al-Husayn ibn Ali is from the progeny of Muhammad ﷺ through his mother. He said, "You have spoken the truth. So what made you deny in my presence?" He said, "Allah has not made it obligatory upon the Prophets to disclose it to the people, and they should not hide it" [Al-Imran 187]. Allah said, "{So they cast him behind their backs and exchanged him for a small price}" [Al-Imran 187]. He said, "So he was exiled to Khurasan."
الْحَجَّاجُ لَمْ يَكُنْ مِنْ ذُرِّيَّةِ النَّبِيِّ ﷺ وَعِنْدَهُ يَحْيَى بْنُ يَعْمَرَ فَقَالَ لَهُ كَذَبْتَ أَيُّهَا الْأَمِيرُ فَقَالَ لَتَأْتِيَنِّي عَلَى مَا قُلْتَ بِبَيِّنَةٍ مِنْ مِصْدَاقٍ مِنْ كِتَابِ اللهِ أَوْ لَأَقْتُلَنَّكَ قَالَ {وَمِنْ ذُرِّيَّتِهِ دَاوُدَ وَسُلَيْمَانَ وَأَيُّوبَ وَيُوسُفَ وَمُوسَى وَهَارُونَ} إِلَى قَوْلِهِ {وَزَكَرِيَّا وَيَحْيَى وَعِيسَى} [الأنعام 85] فَأَخْبَرَ اللهُ ﷻ أَنَّ عِيسَى مِنْ ذُرِّيَّةِ آدَمَ بِأُمِّهِ وَالْحُسَيْنُ بْنُ عَلِيٍّ مِنْ ذُرِّيَّةِ مُحَمَّدٍ ﷺ بِأُمِّهِ قَالَ صَدَقْتَ فَمَا حَمَلَكَ عَلَى تَكْذِيبِي فِي مَجْلِسِي؟ قَالَ مَا أَخَذَ اللهُ عَلَى الْأَنْبِيَاءِ {لَتُبَيِّنُنَّهُ لِلنَّاسِ وَلَا تَكْتُمُونَهُ} [آل عمران 187] قَالَ اللهُ ﷻ {فَنَبَذُوهُ وَرَاءَ ظُهُورِهِمْ وَاشْتَرَوْا بِهِ ثَمَنًا قَلِيلًا} [آل عمران 187] قَالَ فَنَفَاهُ إِلَى خُرَاسَانَ