Volume 1 · Book 12 · Hadith 751
Narrated Imran bin Husain: I offered the prayer with 'Ali in Basra and he made us remember the prayer which we used to pray with Allah's Apostle. 'Ali said Takbir on each rising and bowing.
— Sahih Bukhari, Volume 1, Book 12: Characteristics of Prayer, Hadith #751