पूर्वप्रणिहिता वा पिण्डवालुका मूषाभेदादग्निष्ठादुद्ध्रियन्ते ॥ कZ_०२.१४.२४ ॥
pūrvapraṇihitā vā piṇḍavālukā mūṣābhedād agniṣṭhād uddhriyante
Previously planted pellets of sand (or sand lumps) are retrieved by breaking the crucible or by taking them out from the furnace/hearth.
To enable later substitution—e.g., removing some precious metal and leaving inert material so the container/weight appears consistent during handling.
Randomized crucible integrity checks and hearth-area audits to prevent retrieval of planted materials and to detect tampering.