Mosiah 25:6

And he also read the account of Alma and his brethren, and all their afflictions, from the time they left the land of Zarahemla, until the time they returned again.

He also read about Alma and his brothers. He read about all their troubles from when they left Zarahemla until they came back.

He also read the account of Alma and his people, including all the suffering they went through from the time they left until they made it back.