one's say; one's side of the story; one's claim
Refers to what a person has to say about a matter, especially their own perspective, argument, or justification. Often used when someone is given a chance to explain themselves.
He must have his own side of the story too.
First, let me hear what you have to say.
Let's hear his side of the story before making a judgment.
He must have his own side of the story to tell.
The judge partially accepted the defendant's claim.
He always tries to get his own way in an argument.
In the mediation, both parties' claims were carefully heard.