Is the yellowish discharge - that appears during the menstrual period, whether with blood or not - considered menses that prohibits prayer?

Menstruation is the flowing blood, while yellowness and a reddish-brown discharge have different rulings:

1. Whatever yellowness is discharged connected to the blood (before or after it) is considered menstruation.

2. Whatever is discharged after complete purity has been achieved is not considered anything. Purity is achieved by the discharge of a white secretion or complete dryness.

3. If yellowness is discharged without blood during the "period of customary bleeding," then it is considered menstruation according to the majority of jurists.