Detachment to material objects- A type of Śramaṇadharma (tenfold virtues of ascetic) or uttamadharma (noble virtues);
relinquishment of attachment to one's body, monastic paraphernalia etc.
śariradharmopakaraṇādiṣu nirmamatvamākiñcanyam.
(TaBhā 9.6.9)