Istinja' with Water Left Over from Wudu
Question
May one perform istinja' with the water [left over from] wudu or not?
Answer
The water that remains in the jug after wudu is not impure; there is no need to waste it. Wudu or istinja' with it — all of it is proper.
Source: Fatawa Mahmudiyya
Preview. The full text opens with JavaScript enabled.