Okta SSO mobile app and SharePoint O365

We have setup Okta SSO with SharePoint Online. We have also developed custom React Native mobile for our clients which is also have Okta SSO.

We need to to setup Okta on mobile in such when client click on a URL in mobile app he should get redirect to SharePoint Online portal and doesn’t need to enter credentials again.

I am new to Okta SSO stuff so appreciate any tips, ideas or article how to achieve it.