The ruling on one whose garment is affected by ritual impurity and he does not know its location

The question: His question states: If ritual impurity falls on a person's garment and he does not know the location of the impurity, what should he do?
The answer: If he does not know, but it is possible to investigate, he should investigate until he washes the place he identifies. If he does not know and nothing is predominant in his mind, he must wash the entire garment. However, if he suspects it is in a specific place, he should investigate that specific place and wash the identified area, whether it is at the bottom edge, on the sleeve, or in any place he identifies. Yes.
The presenter: May Allah reward you.