Charak Samhita
धात्रीफलरसप्रस्थांस्त्रीन् गुडार्धतुलां तथा । पक्त्वा मृद्वग्निना खादेद्बदरोदुम्बरोपमान् ॥४२॥
Then, three prasthas (around 2.20 litres) juice of Amalaki and half a tula of jaggery are added to the entire material and cooked over mild fire.
english translation
dhAtrIphalarasaprasthAMstrIn guDArdhatulAM tathA । paktvA mRdvagninA khAdedbadarodumbaropamAn ॥42॥
hk transliteration by Sanscript