Rinsing the nose in wudoo’ is obligatory

I did wudoo’ for prayer, and during the prayer I remembered that I had not rinsed my nose. What is the ruling concerning my wudoo’ and my prayer in this case?

Praise be to Allaah.

Rinsing the nose in wudoo’ is obligatory, because it is proven that the Prophet (peace and blessings of Allaah be upon him) did this and said: “Whoever does wudoo’, let him rinse his nose.” Whoever does not rinse his nose, his wudoo’ is not valid. So you must repeat both your wudoo’ and your prayer.