Rasadhyaya 79

79

atra ca jalamadhye mṛttikāpāṣāṇajalāntarasaṃyogāt tathā dugdhopari tarāvac ca ye dṛśyante te kañcukā ucyante || 2

And here, those which are seen like the skin on milk due to contact with earth, stone, and water inside water are called sheath defects. [2]