Bukhari, Muhammad ibn Ismail, al- (c.810-70), Arabic scholar, b. Bukhara. He traveled widely over Muslim regions and made an authoritative collection of the hadith, the traditional sayings of the Prophet. The al-Bukhari collection is regarded by many Sunni Muslims as the most reliable commentary and a law book second only to the Qur'an. The tomb of al-Bukhari, near Samarkand, is a noted place of pilgrimage.