[Machine] He (Umar) said: "It is possible that you have made a mistake in assuming, or you are still following your previous religion of the Jahiliyyah (pre-Islamic era). I remember that you used to be their soothsayer." He replied: "I have not seen anything like what happened today, where a Muslim man is being welcomed with such honor." Umar said: "I swear that I will not ask you again if you were their soothsayer in the Jahiliyyah." He said: "So what is so astonishing about what has brought you here?" Then he narrated a lengthy Hadith without any reference. The Hadith is recorded in Sahih al-Bukhari by this chain of narrators.  

لَهُ أَخْطَأَ ظَنِّي أَوْ إِنَّكَ عَلَى دِينِكَ فِي الْجَاهِلِيَّةِ وَلَقَدْ كُنْتَ كَاهِنَهُمْ قَالَ مَا رَأَيْتُ كَالْيَوْمِ اسْتُقْبِلَ بِهِ رَجُلٌ مُسْلِمٌ قَالَ عُمَرُ فَإِنِّي أَعْزِمُ عَلَيْكَ أَلَا أَخْبَرَتْنِي قَالَ كُنْتُ كَاهِنَهُمْ فِي الْجَاهِلِيَّةِ؟ قَالَ فَمَاذَا أَعْجَبُ مَا جَاءَ بِكَ؟ «فَذَكَرَ حَدِيثًا طَوِيلًا لَيْسَ لَهُ سَنَدٌ» الحديث في صحيح البخاري بهذا الإسناد بطوله