Answered by Sidi Sulaiman Hart
If one never prayed regularly and did not have a wet dream (al-ihtilaam) until the age of 15, is that the correct age to be used in computation of one’s qadas?
Answer:
Asalaamu ALaykum
Yes.
The signs that one has become legally mature are :
1. Ejaculation.
2. Reaching the age of 15 lunar years. (A lunar year is 11 days shorter than a solar year.)
3. Menstruation.
And Allah knows best
Wa salaam
Sulaiman.