Sunan an-Nasa'i 902
سنن النسائي#902SahihIt was narrated from Anas that:The Prophet (ﷺ), Abu Bakr, and Umar, may Allah be pleased with them both, would start their recitation with: "All the praise and thanks be to Allah, the Lord of all that exists
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu Ghuddah-
Zubair Ali ZaiSahih
In-book reference: 11:27