Is it true that there is a consensus among the schools of thought (madhhabs) that discharges invalidate ablution (Wudu')? And can their exact statements be cited in this regard, especially considering the existence of other views, such as the research of Dr. Ruqayyah Al-Muhareb, which it was said that Ibn Uthaymeen agreed with? And what is the effect of that on the ritual purity of those who suffer from it?

Vaginal discharge invalidates ablution (Wudu') according to the consensus of the schools of thought and the general body of scholars. No dissenting opinion is known regarding this except that of Ibn Hazm. It is ritually pure (tahir) and does not necessitate Istinja (definition)'. As for one whose ritual impurity (hadath (definition)) is intermittent or continuous, such as incontinence (sals), their ruling is that of a person suffering from sals: they perform Wudu' after the prayer time has begun and may pray with that Wudu' whatever obligatory (fard) and supererogatory (nafl) prayers they wish, until that prayer time expires.