From Sahih Muslim (Hadith 1865):
Anas reported Allah's Messenger (ﷺ) 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)
Reference: Muslim 1865