Question:
Does cutting the nails or having a hair cut while in wud�' make wud�' invalid?

Answer:
Cutting nails and having a hair cut are not prohibited at any time except while a person is in the state of ihr�m during Hajj or `Umrah.
In no case do these activities invalidate a person's wud��.
And Allah knows best.
Responded by: Sheikh `Abd al-Wahh�b al-Turayr�, former professor at al-Im�m University in Riyadh