Is light yellow considered a sign of purity, and is it considered like the white discharge (al-qassah al-bayda’)? What is the considered duration of dryness (jufūf) for purity? Is it obligatory to perform ghusl again if light brown discharge appears after seeing the light yellow color and performing ghusl? Is it permissible to delay making up missed prayers to ensure purity?

A woman's purity from menstruation is achieved by one of two signs: complete dryness (al-jufuf al-tamm) or a white discharge (al-qassah al-bayda'). If she observes either of these, she should perform ghusl (ritual bath) and pray. However, if she sees a yellowish or brownish discharge after achieving purity, she should not pay attention to it unless it continuously accompanies blood throughout the entire month, in which case she would be considered a woman with prolonged vaginal bleeding (mustahadah). In this situation, she should refer to her regular habit (menstrual cycle). If she does not have a regular habit, she should distinguish the blood (between menstrual and non-menstrual). Otherwise, she should consider herself menstruating for six or seven days of the month, then perform ghusl and perform wudu' (ablution) for every prayer.