Anandakanda 1.2.20

1.2.20

dhārmikaḥ pāpabhīruśca balavān jñānavittamaḥ /
nyāyaśreṣṭhaḥ sarvasamo rasāgamaviśāradaḥ //

[The patron should be] righteous, fearing sin, strong, most learned in knowledge, / foremost in justice, impartial to all, proficient in the alchemical treatises;