[Machine] The Messenger of Allah, ﷺ , used to begin the prayer with the takbeer (saying Allahu Akbar) and recite "Alhamdulillahi Rabbil 'Aalameen" (Praise be to Allah, the Lord of all the worlds) [Surah Al-Fatiha, verse 2].
رَسُولَ اللهِ ﷺ كَانَ يَفْتَتِحُ الصَّلَاةَ بِالتَّكْبِيرِ وَالْقِرَاءَةِ بِ {الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ} [الفاتحة 2]