Question: When a girl is supposed to fast?
Answer: A girl must fast when she reaches the age of puberty and complete adulthood, and this occurs by reaching the age of 15 years old, or either by growing up of coarse hair around her genitals, by ejaculation, by menstruation, or by pregnancy.
When some of these signs happen to her, she has to fast then even if she is only 10 years old.
