Question 15: Our teacher told us that performing Istinjaa’ (cleansing the private parts with water after urination or defecation) after breaking wind is reprehensible. This means that if one breaks wind after performing Wudoo’ (ablution), it will be reprehensible for him to perform Istinjaa’. Is this saying correct?
Answer: All Praise be to Allaah Alone and peace and blessings be upon His Messenger, his family and Companions. It is reprehensible to perform Istinjaa’ because of breaking wind. Doing so is considered to be extreme… read more here.