Roza becomes obligatory for Muslims when they reach puberty. This typically occurs between the ages of 10-14 years for girls and 12-16 for boys.
Signs of Puberty in Girls:
- Menstruation (the first menstrual period)
- Growth of pubic hair
- Development of breasts
Signs of Puberty in Boys:
- Wet dreams
- Growth of pubic hair
- Deepening of voice
- Facial hair
Once a Muslim reaches puberty, fasting during Ramadan becomes a religious obligation. However, fasting is exempted for individuals who are ill, traveling, pregnant, breastfeeding, or menstruating.
Note: The age of puberty can vary depending on individual factors. If a person exhibits signs of puberty before the general age range, fasting becomes obligatory for them.