what are the acts that invalidate wudu?
Answer:
The acts that invalidate wudu are:1. answering the call of nature,
2. releasing wind,
3. sleeping, and
4. sexual emissions.
Looking at one’s private parts does not constitute breaking the presence of wudu; thus if one who is in a state of wudu happens to look at his private parts, his wudu will be considered valid and he does not need to redo his wudu to attend prayer.