A rak'ah in Salat starts with "Takbiratul-Ihram". This is the first takbir that is made after starting the Salat, and it signifies the beginning of the prayer. After making Takbiratul-Ihram, the person starts the prayer with Qiyam bi Itidal, which is the standing posture where hands are folded over the chest and one recites Surah Al-Fatihah and another surah from the Quran.