How can a sister ascertain her purity from nifas if she is approaching one month and has not seen the white discharge, but only sees yellowish discharge (al-kudrah)? And is the yellowish discharge considered among the signs of purity, and does it prevent prayer?

Purity from menstruation and postpartum bleeding (nifas (definition)) is recognized by two signs: the emission of the white discharge (a white fluid that follows the blood), or dryness (the cotton swab comes out clean without any blood, yellowish discharge, or brownish discharge).

If the yellowish or brownish discharge is connected to the blood, it is considered nifas, and the woman must refrain from prayer and what is prohibited for a woman in nifas until she sees purity by one of the two signs, unless the blood and whatever yellowish or brownish discharge is connected to it exceeds forty days, which is the maximum period for nifas.