Q. Salaah is compulsory on a person from the time of maturity. But how does one determine maturity?
A. The maturity (Buloogh) of a male is determined by him experiencing a wet dream (Ihtilaam) or ejaculation (Inzaal).
The maturity (Buloogh) of a female is determined by her experiencing a wet dream (Ihtilaam) or menstruation (Haidh).
If a male or female does not experience the signs of maturity (Buloogh) stated above, they would automatically be classified as mature (Baaligh) at the age of fifteen lunar years (approximately 14.7 solar years). (Shaami 6/153)
Allah Ta’ala Knows Best
Mufti Ismaeel Bassa
This answer was collected from TheMufti.com, which is a fatwa portal managed by Mufti Ismaeel Bassa from South Africa.