Sahih Bukhari | Volume 6 | Hadith Number 483

Narrated by Anas bin Malik
The Prophet said to Ubai (bin Ka'b). "Allah has ordered me to recite to you: 'Those who disbelieve among the people of the Scripture and among the idolators are not going to stop (from their disbelief.') (Sura 98) Ubai said, "Did Allah mention me by name?" The Prophet said, "Yes." On that, Ubai wept.