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I have been reading the Wikipedia page about female genital mutilation and found that its still practiced at high rates in some Muslim-majority countries:
The highest concentrations among the 15–49 age group are in Somalia (98 percent), Guinea (97 percent), Djibouti (93 percent), Egypt (91 percent) and Sierra Leone (90 percent).
Is female genital mutilation a mandatory act in Islam, or is it a cultural (or society based) matter? Are there Quranic verses or hadeeths supporting it?