What is the ruling if an object penetrates the internal barrier (like the rectum) from the posterior?

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If an iron rod, piece of wood, or a hand is inserted into a person's posterior, breaching an internal barrier, the perpetrator is liable for 'hukumat' (discretionary compensation). The perpetrator is not liable for the compensation of a 'ja'ifa' (penetrating wound into a body cavity) because a ja'ifa is defined as a wound that breaches from the exterior surface to the interior cavity, and this scenario is contrary to that definition.