Enquiring minds want to know.
At a minimum, Looks like BHO Sr. was required to register a Mohammedan divorce within seven days. A simple “verbal” divorce would not do it...
http://www.kenyalaw.org/kenyalaw/klr_app/frames.php
CHAPTER 1 - MOHAMMEDAN MARRIAGE AND DIVORCE REGISTRATION CODE
9. Registration of marriages and divorces.
Entries to be numbered. Method of application for registration.
Registration of marriages and divorces. 15 of 1961, Sch. 9.
The parties to a marriage or divorce recognized by Mohammedan law, or if the man or the woman or both are minors their respective lawful guardians, shall register such marriage or divorce with an assistant registrar within seven days from the celebration of such marriage or the pronouncement of such divorce, as the case may be.