Mutual infliction of pain- That pain which is inflicted mutually by those internals who are possessed of deluded world-view.
parasparodīritāni ca duḥkhāni narakeṣu nārakāṇāṃ bhavanti. mithyādṛṣṭayo bhavapratyayavibhaṅgānugcvtatvādālokya parasparamevābhighātādibhirduḥkhāni.
(TaVā 3.4)