Does touching the private parts without desire invalidate the ablution and affect the full ritual bath?

The questioner : He says: Does it affect him if a person touches the private parts, the front or the back, and this touching is without desire? Does it affect the full ritual bath? And is it a nullifier of the ablution such that he must perform the ablution?

The Shaykh : This does not affect the full ritual bath or the ablution, because touching the front or the back without desire does not invalidate the ablution.