Does touching a child's private parts to clean them invalidate the ablution?

Question : Hello, yes, peace be upon you. And upon you be peace. I have two questions, oh. The first question is regarding washing a child's private parts, oh Shaykh. Does it invalidate the ablution for a woman if she performs the ablution for this child?

Answer : It does not invalidate the ablution. That is, if a woman purifies her child and touches his private parts, her ablution is not invalidated by it.
Because touching the private parts only invalidates the ablution if the touch is with desire. If the touch is without desire, then it is not obligatory to perform the ablution because of it. The Prophet (peace and blessings be upon him) was asked about a man who touches his penis. Is the ablution obligatory on him? He said: No, it is merely a part of you. And in another hadith, that
The reconciliation between them is that if a man touches his penis considering it a part of himself, meaning a member of his limbs, and his desire is not stirred by touching it, then he has no obligation to perform the ablution. But if he touches it for desire, then this specific member is singled out by the attachment of desire to it, and his ablution is invalidated. This is the strongest opinion in this issue. May Allah reward you and bless you.