What is the requirement for lifting the restriction (*Hajr*) placed on a mentally incapacitated person (*Majnun*) when they regain sanity?

The restriction on a mentally incapacitated person who regains sanity is lifted without any judicial decree and without dispute.

What is the requirement for lifting the restriction (Hajr) placed on a mentally incapacitated person (Majnun) when they regain sanity?