It wasnarrated that 'Aishah said:
"The Messenger of Allah (ﷺ), AbuBakr, 'Umar and 'Uthman used to start their recitation with "Allpraises and thanks are to Allah, the Lord of all that exists.(Al-hamdu Lillahi Rabbil-'Alamin).'" [1:2] (DE)
English reference (DE): Vol. 1, Book 5, Hadith 812 (DE)
Arabic reference (DE): Book 5, Hadith 861 (DE)