Mosiah 18:15

And again, Alma took another, and went forth a second time into the water, and baptized him according to the first, only he did not bury himself again in the water.

Again, Alma took another person. He went into the water a second time. He baptized this person the same way as the first. But he didn’t go under the water again himself.

Then Alma took another person and went into the water a second time. He baptized them the same way as the first, but this time he didn’t go under the water himself.