The Prophet (ﷺ) prayed and stood up following the first two rak'ahs, and they said (SubhanAllah). He carried on, then when he finished his prayer he performed two prostrations, then he said the Salam.
Sunan an-Nasa'i Book 12, Hadith 150
← Previous Hadith The Prophet (ﷺ) prayed, then he stood up after two rak'ahs while he was supposed to sit, and he continued his prayer. Then at the end of his prayer, he performed two prostrations before the Salam, then he said the Salam.

Sunan an-Nasa'i Book 12, Hadith 149 Next Hadith → "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 (ﷺ), Abu Bakr and 'Umar, may Allah (SWT) be pleased with them.' Then he fell silent and Hutaim said to him: 'And 'Uthman?' He said: 'And 'Uthman.'"

Sunan an-Nasa'i Book 13, Hadith 1