Garudapurana 1.174.8

1.174.8

tailametatpraśamayedvalyākyaṃ rājavallabham /
śatāvarīrasaprasthaṃ kṣīraprasthaṃ tathaiva ca //

this oil, named Balyā [or Balā oil], beloved by kings, alleviates. / Take a prastha of the juice of śatāvarī and likewise a prastha of milk;