Allah has commanded me to recite the Qur'an to you. He said: Did Allah mention me to you by name? He (the Holy Prophet) said: Allah made a mention of your name to me. (On hearing this) Ubayy b. Ka'b wept.  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لأُبَىٍّ إِنَّ اللَّهَ أَمَرَنِي أَنْ أَقْرَأَ عَلَيْكَ قَالَ آللَّهُ سَمَّانِي لَكَ قَالَ اللَّهُ سَمَّاكَ لِي قَالَ فَجَعَلَ أُبَىٌّ يَبْكِي  

Allah has commanded me to recite to you:" Those who disbelieve were not..." (al-Qur'an, xcviii. 1). He said: Did He mention me by name? He (the Prophet said): Yes. Upon this he shed tears (of gratitude).  

قَالَ رَسُولُ اللَّهِ ﷺ لأُبَىِّ بْنِ كَعْبٍ إِنَّ اللَّهَ أَمَرَنِي أَنْ أَقْرَأَ عَلَيْكَ { لَمْ يَكُنِ الَّذِينَ كَفَرُوا} قَالَ وَسَمَّانِي لَكَ قَالَ نَعَمْ قَالَ فَبَكَى  

I heard Anas saying that the Messenger of Allah ﷺ said to Ubayy the same thing.  

قَالَ رَسُولُ اللَّهِ ﷺ لأُبَىٍّ بِمِثْلِهِ