Musnad Ahmad 169
It was narrated that Abu Wa'il said:
as­-Subayy bin Ma'bad said: I was a Christian man and I became Muslim, and I entered ihram for both Hajj and 'Umrah (together). Zaid bin Soohan and Salman bin Rabee'ah heard me ­­­when I was entering ihram for both and said. He is more astray than his people's camel. Their words wounded me greatly, so I went to ‘Umar and told him. He turned to them and criticised them, then he turned to me and said: You have been guided to the Sunnah of your Prophet ﷺ, you have been guided to the Sunnah of your Prophet ﷺ.
حَدَّثَنَا سُفْيَانُ، عَنْ عَبْدَةَ بْنِ أَبِي لُبَابَةَ، عَنْ أَبِي وَائِلٍ، قَالَ قَالَ الصُّبَيُّ بْنُ مَعْبَدٍ كُنْتُ رَجُلًا نَصْرَانِيًّا فَأَسْلَمْتُ فَأَهْلَلْتُ بِالْحَجِّ وَالْعُمْرَةِ فَسَمِعَنِي زَيْدُ بْنُ صُوحَانَ وَسَلْمَانُ بْنُ رَبِيعَةَ وَأَنَا أُهِلُّ بِهِمَا فَقَالَا لَهَذَا أَضَلُّ مِنْ بَعِيرِ أَهْلِهِ فَكَأَنَّمَا حُمِلَ عَلَيَّ بِكَلِمَتِهِمَا جَبَلٌ فَقَدِمْتُ عَلَى عُمَرَ رَضِيَ اللَّهُ عَنْهُ فَأَخْبَرْتُهُ فَأَقْبَلَ عَلَيْهِمَا فَلَامَهُمَا وَأَقْبَلَ عَلَيَّ فَقَالَ هُدِيتَ لِسُنَّةِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ هُدِيتَ لِسُنَّةِ نَبِيِّكَ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ عَبْدَةُ قَالَ أَبُو وَائِلٍ كَثِيرًا مَا ذَهَبْتُ أَنَا وَمَسْرُوقٌ إِلَى الصُّبَيِّ نَسْأَلُهُ عَنْهُ‏.‏