Question

How to split the sentence : what he says is true

Answer 1

Answer:

Ambiguity in the question

Explanation:

How do you want to split the sentence?

Like, in Direct Speech?

Anyways, something better would be: "What he says," he said, "is true."

Or, just in a simple sentence, it'd be like: What he says is true. There is no need for adding a comma to split.

Due to the question being unclear, my answer is quite limited and specific. Would love if you share more details! *smiley*