Translation:
Provisional translation
This is the remembrance of God unto His servant who hath been named Mahdi, that he may render thanks unto his Lord and be well-pleasing in God's sight. O servant! Hearken unto the call [3.5s]
ذکر الله عبده الذی سمی بمهدی لیشکر ربه و یکون فی الله رضیا ان یا عبد اسمع ندآء
