NASAI 2721:
from a man from Banī Taghlib —
there was a man from Banu Taghlib, who was called As-Subai bin Mabad, who had been a Christian, then became of Muslim.The first time he went for Hajj, he recited the Talbiyah Hajj and "Umrah together, and he continued to recite the Talbiyah for them together, He passed by Salman bin Rabiah and Zaid bin suhan, and one to then said; "You are more lost than this camel of yours." As-Subai" said: "This upset me until I met 'Umar bin Al-Khattab, and I mentioned that to him. He said: 'Yuou have been guided to the sunnah of your Prophet shaqiq said: "Masruq bin Al-Ajda and I often used to visit As-Subai bin Ma'bad and talk with him"
النسائي ٢٧٢١:
عن ا من عن بني تغلب —
أَحَدُهُمَا لأَنْتَ أَضَلُّ مِنْ جَمَلِكَ هَذَا فَقَالَ الصُّبَىُّ فَلَمْ يَزَلْ فِي نَفْسِي حَتَّى لَقِيتُ عُمَرَ بْنَ الْخَطَّابِ فَذَكَرْتُ ذَلِكَ لَهُ فَقَالَ هُدِيتَ لِسُنَّةِ نَبِيِّكَ ﷺ قَالَ شَقِيقٌ وَكُنْتُ أَخْتَلِفُ أَنَا وَمَسْرُوقُ بْنُ الأَجْدَعِ إِلَى الصُّبَىِّ بْنِ مَعْبَدٍ نَسْتَذْكِرُهُ فَلَقَدِ اخْتَلَفْنَا إِلَيْهِ مِرَارًا أَنَا وَمَسْرُوقُ بْنُ الأَجْدَعِ
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