Volume 7 · Book 70 · Hadith 561
Narrated Anas: A Jewish boy used to serve the Prophet and became ill. The Prophet went to pay him a visit and said to him, "Embrace Islam," and he did embrace Islam. Al-Musaiyab said: When Abu Talib was on his deathbed, the Prophet visited him.
— Sahih Bukhari, Volume 7, Book 70: Patients, Hadith #561