Rasendrapurana 37.19

Rasendrapurāṇa 37.19

kāṃsyapittalaviddhabhasmavidhiḥ
āraṃ tāraṃ samaṃ kṛtvā mṛtavaṃgaṃ niyojayet
eṣā rājavatī vidyā pitā putraṃ na bhāṣate