His situation is suspended regarding another’s property, so his share from it is suspended like the foetus.
تحفة الملوكZayn al-Dīn al-Rāzīفصل المفقود حيٌّ في ماله فلا يورث حتى يَحْكَمَ الحاكم بموته إذا مات أَقرانه.
Chapter — the missing [person], alive: he is not inherited from until the ruler rules his death once his peers have died
When death is ruled for him, his property belongs to his heirs who exist at the ruling of his death.
What was suspended for him from another’s property reverts to the heirs of that other.