Sahih Al Bukhari Hadith Number 804

And Abu Huraira said, “When Allah’s Messenger (peace be upon him) raised his head from (bowing) he used to say “Sami`a l-lahu liman hamidah, Rabbana wa laka l-hamd.” He Would invoke Allah for some people by naming them: “O Allah! Save Al-Walid bin Al-Walid and Salama bin Hisham and `Aiyash bin Abi Rabi`a and the weak and the helpless people among the faithful believers O Allah! Be hard on the tribe of Mudar and let them suffer from famine years like that of the time of Joseph.” In those days the Eastern section of the tribe of Mudar was against the Prophet.

10  Call to Prayers (Adhaan)
Hadith number 804
Volume no 1
Chapter: 128 (One should say Takbir while going in prostration.)