When the people of Yemen came, ‘Umar started asking people in the group, Is there anyone among you from Qaran, until he came to [the tribe of Qaran] and said: Who are you? They said: Qaran. Umar’s reins - or Uwaisʿs reins - fell and one of them picked them up and gave them to the other. ‘Umar recognized him and said: What is your name? He said: I am Uwais, [ʼUmar] said: Do you have a mother? [Uwais] said: Yes. [ʻUmar] said: Did you have any whiteness [leprosy]? He said: Yes, but I prayed to Allah, may He be glorified and exalted, and He took it away, except for an area the size of a dirham near my navel, so that I would remember my Lord. ‘Umar said to him: Pray for forgiveness for me. He said: Rather you should pray for forgiveness for me; you are the Companion of the Messenger of Allah ﷺ. ʼUmar (e.) said: I heard the Messenger of Allah ﷺ say: ʿThe best of the Tabiʿeen will be a man called Uwais who has a mother, and he has some whiteness, then he prayed to Allah, may He be glorified and exalted, and He took it away, except for an area the size of a dirham near his navel.” So he prayed for forgiveness for him, then he disappeared in a group of people and no one knew where he ended up. Then he (Uwais) came to Koofah. We used to gather in a circle, remembering Allah, and he would sit with us, and when he spoke of Allah, his words would have an impact on us like that of no one else. And he quoted the hadeeth... It was narrated from Qais or Ibn Qais, a man from Juʿfi, from ʿUmar bin al-Khattab and he mentioned a Hadeeth similar to that of Affan.  

مَنْ أَنْتُمْ؟ قَالُوا قَرَنٌ فَوَقَعَ زِمَامُ عُمَرَ أَوْ زِمَامُ أُوَيْسٍ فَنَاوَلَهُ أَوْ نَاوَلَ أَحَدُهُمَا الْآخَرَ فَعَرَفَهُ فَقَالَ عُمَرُ مَا اسْمُكَ؟ قَالَ أَنَا أُوَيْسٌ فَقَالَ هَلْ لَكَ وَالِدَةٌ؟ قَالَنَعَمْ قَالَ فَهَلْ كَانَ بِكَ مِنَ الْبَيَاضِ شَيْءٌ؟ قَالَ نَعَمْ فَدَعَوْتُ اللهَ ﷻ فَأَذْهَبَهُ عَنِّي إِلَّا مَوْضِعَ الدِّرْهَمِ مِنْ سُرَّتِي لِأَذْكُرَ بِهِ رَبِّي قَالَ لَهُ عُمَرُ اسْتَغْفِرْ لِي قَالَ أَنْتَ أَحَقُّ أَنْ تَسْتَغْفِرَ لِي أَنْتَ صَاحِبُ رَسُولِ اللهِ ﷺ فَقَالَ عُمَرُ إِنِّي سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ إِنَّ خَيْرَ التَّابِعِينَ رَجُلٌ يُقَالُ لَهُ أُوَيْسٌ وَلَهُ وَالِدَةٌ وَكَانَ بِهِ بَيَاضٌ فَدَعَا اللهَ ﷻ فَأَذْهَبَهُ عَنْهُ إِلَّا مَوْضِعَ الدِّرْهَمِ فِي سُرَّتِهِ فَاسْتَغْفَرَ لَهُ ثُمَّ دَخَلَ فِي غِمَارِ النَّاسِ فَلَمْ يُدْرَ أَيْنَ وَقَعَ قَالَ فَقَدِمَ الْكُوفَةَ قَالَ وَكُنَّا نَجْتَمِعُ فِي حَلْقَةٍ فَنَذْكُرُ اللهَ وَكَانَ يَجْلِسُ مَعَنَا فَكَانَ إِذَا ذَكَرَ هُوَ وَقَعَ حَدِيثُهُ مِنْ قُلُوبِنَا مَوْقِعًا لَا يَقَعُ حَدِيثُ غَيْرِهِ فَذَكَرَ الْحَدِيثَ