It was narrated that ‘Abdur Rahman bin Al-Asamm said: “Anas bin Malik was asked about the Takbir in the prayer. He said: ‘The Takbir should be said when bowing, when prostrating, when raising one’s head from prostration and when standing up following the first two Rak’ahs.’ Hutaim said: ‘From whom did you learn this?’ He said: ‘From the Prophet صلی اللہ علیہ وآلہ وسلم, Abu Bakr and ‘Umar, may Allah be pleased with them.’ Then he fell silent and Hutaim said to him:
‘And ‘Uthman?’ He said: ‘And ‘Uthman.” (Sahih)