English of Core Text: [The ten verses of Malchuyos correspond] to the ten utterances with which the world was created. Which are they? The “And He said” phrases in Bereishis are [only] nine! “Bereishis” is also an utterance, as it is written: “By the word of the Lord the heavens were made” (Tehillim 33:6).
On the daf / in context: The sugya is establishing why ten verses are required for each of the three special berachos on Rosh Hashanah (Malchuyos, Zichronos, Shofaros). One view ties the number ten to the ten maamaros of creation. The Gemara notes that the explicit “Vayomer” statements in the creation narrative total only nine; it therefore counts the opening word “Bereishis” itself as a maamar on the strength of the parallel verse in Tehillim that creation occurred through speech.
Type of Learning: Custom (counting Bereishis as a maamar via parallel verse)
What Is Learned: The opening word of the Torah is itself treated as a creative utterance of God, completing the set of ten maamaros. This local point justifies the number of verses recited in the Rosh Hashanah Mussaf.