Does touching the private parts during the full ritual bath invalidate the ablution?

Question:
Honorable Shaykh, the questioner asks: If a Muslim performs the ablution and then takes the full ritual bath for major ritual impurity, and during the bath he touches his private parts, does his ablution become invalid?

Answer:
Yes, he must repeat the ablution. If he touches his private parts, his ablution is invalidated, so he must perform the ablution a second time.