Sahih Muslim , Book 4, Hadith 1748 (USC-MSA) ⓘ
Anas reported Allah's Messenger as saying to Ubayy b. Ka`b: 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).
حَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، وَابْنُ، بَشَّارٍ قَالاَ حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، قَالَ سَمِعْتُ قَتَادَةَ، يُحَدِّثُ عَنْ أَنَسٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم لأُبَىِّ بْنِ كَعْبٍ " إِنَّ اللَّهَ أَمَرَنِي أَنْ أَقْرَأَ عَلَيْكَ { لَمْ يَكُنِ الَّذِينَ كَفَرُوا} " . قَالَ وَسَمَّانِي لَكَ قَالَ " نَعَمْ " . قَالَ فَبَكَى .
also referenced under: Book 6, Hadith 293 (In-Book) & Hadith 799 (Reference)