Volume 1 · Book 12 · Hadith 736
Narrated Al-Bara: I heard the Prophet reciting wat-tini wazzaituni" (95) in the 'Isha' prayer, and I never heard a sweeter voice or a better way of recitation than that of the Prophet.
— Sahih Bukhari, Volume 1, Book 12: Characteristics of Prayer, Hadith #736