Combining the obligation of zakah on the minor and the insane with the impermissibility of paying it on their behalf

The questioner : Shaykh al-Baqiri, how do we reconcile the obligation of zakah on the minor and the insane with the fact that it is not permissible to pay the zakah of milk on their behalf?

The Shaykh : Yes.

The questioner : Millionaire.

The Shaykh : Yes, the insane person has no intention, and the minor who is below the age of discernment also has no intention, but their guardian pays it on their behalf.

The questioner : But what if a shaykh pays for a man on behalf of another man without a reason?

The Shaykh : But this is a case of dire necessity; the guardian of the insane person and the guardian of the boy pay on their behalf out of dire necessity.