Rasaprakashasudhakara 5.15

5.15

kāṃjike cāpi nirdoṣam abhrake jāyate dhruvam
varākvāthe tathā dugdhe gavāṃ mūtre tathaiva ca
mārkavasya rasenāpi doṣaśūnyaṃ prajāyate //

mica certainly becomes free from defects when [quenched] in sour gruel as well, / in a decoction of the three myrobalans, likewise in cow's milk, and in cow's urine as well, / and it also becomes free from defects with the juice of mārkava.