Sahih Bukhari Volume 4, Book 58, Hadith 3157

حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ اللَّهِ، حَدَّثَنَا سُفْيَانُ، قَالَ سَمِعْتُ عَمْرًا، قَالَ كُنْتُ جَالِسًا مَعَ جَابِرِ بْنِ زَيْدٍ وَعَمْرِو بْنِ أَوْسٍ، فَحَدَّثَهُمَا بَجَالَةُ، سَنَةَ سَبْعِينَ ـ عَامَ حَجَّ مُصْعَبُ بْنُ الزُّبَيْرِ بِأَهْلِ الْبَصْرَةِ ـ عِنْدَ دَرَجِ زَمْزَمَ قَالَ كُنْتُ كَاتِبًا لِجَزْءِ بْنِ مُعَاوِيَةَ عَمِّ الأَحْنَفِ، فَأَتَانَا كِتَابُ عُمَرَ بْنِ الْخَطَّابِ قَبْلَ مَوْتِهِ بِسَنَةٍ فَرِّقُوا بَيْنَ كُلِّ ذِي مَحْرَمٍ مِنَ الْمَجُوسِ‏.‏ وَلَمْ يَكُنْ عُمَرُ أَخَذَ الْجِزْيَةَ مِنَ الْمَجُوسِ‏

Narrated By 'Umar bin Dinar : I was sitting with Jabir bin Zaid and 'Amr bin Aus, and Bjalla was narrating to them in 70 A.H. the year when Musab bin Az-Zubair was the leader of the pilgrims of Basra. We were sitting at the steps of Zam-zam well and Bajala said, "I was the clerk of Juz bin Muawiya, Al-Ahnaf's paternal uncle. A letter came from 'Umar bin Al-Khattab one year before his death; and it was read: "Cancel every marriage contracted among the Magians between relatives of close kinship (marriages that are regarded illegal in Islam: a relative of this sort being called Dhu-Mahram.)" 'Umar did not take the Jizya from the Magian infidels