Hi,
Two choices;
1.) You could always reset the password by going to http://www.domain.com/wp-admin and click “forgot password” then enter the email address of his. Check his email and follow the instructions.
2.) You can go through your Control Panel, access PHPMyAdmin and click “wp_users” which the very first line on the right will be the username, if you click edit next to that, you can locate a line that says “Password”, make sure you select MD5 in of the the drop down boxes, and the box next to that enter the password. This is a quick run down; this tutorial should help with that in more detail;
https://codex.wordpress.org/Resetting_Your_Password
Hope that helps. 🙂
Thank you! and Happy New Year!
