Sahih Muslim
The Book of Prayers (Kitab Al-Salat)
Book Number: 004 / Hadith Number: 767
Abu Salama b. 'Abd al-Rahman reported.. When Marwan appointed Abu Huraira as his deputy in Medina, he recited takbir whenever he got up for obligatory prayer, and the rest of the hadith is the same as transmitted by Ibn Juraij (but with the addition of these words): On completing the prayer with salutation, and he turned to the people in the mosque and said....