مسائل المنتخبه (Articles Of Islamic Acts) - الخوئي، السيد أبوالقاسم - الصفحة ٨٥ - III EXCESSIVE BLOOD (KATHIRA)?If the blood penetrates through the cotton, soaking it and
the cloth (etc.) around it, the istihaza is called kathira.
ORDERS REGARDING ISTIHAZA
٤٠٠. In the case of slight istihaza the woman
concerned should perform separate ablutions for everyone of the prayers
and should, as a precautionary measure, changethe pad. And in case some
blood is found on the outer part of her private parts she should purify
it with water.
٤٠١. In the "medium" case the woman should take
bath for the dawn prayers and should perform all the acts for her
prayers till the next morning as has beenmentioned in connection with
the slight case. And in case she does not take bath for the dawn prayers
intentionally or inadvertently she should take bath for the
midday(Zuhr) and afternoon (Asr) prayers.