15. (1) When a person who is to be attested is reported fit for duty, or has completed the prescribed period of probation, an oath or affirmation shall be administered to him in the prescribed form by his commanding officer, in front of his corps or unit or such portion thereof as may be present, or by any other prescribed person. (2) The form of oath or affirmation prescribed under this section shall contain a promise that the person to be attested will be faithful to Bangladesh and its Constitution and bear true allegiance to the President of Bangladesh and that he will serve in the Bangladesh Army and will go wherever he is ordered by land, air or sea, and that he will obey all commands of any officer set over him, even to the peril of his life. (3) The fact that an enrolled person has taken the oath or affirmation directed by this section shall be entered on his enrolment paper, and authenticated by the signature of the officer administering the oath or affirmation.