Q: Someone makes wuḍū’ and during prayer comes to know that there remained some traces of make up on her face, is her prayer valid? If she comes to know it after the prayer, what should she do? It is worth mentioning that she had some make up before.
A: If one is sure that the obstacle existed at the time of wuḍū’, there is no difference between before and after prayer. In any case, he should remove the obstacle, make wuḍū’ again and say the said prayer again.