Anandakanda 1.6.6

1.6.6

aṣṭāvaśiṣṭaṃ saṃkvāthya pratirātraṃ pibettryaham /
anantaraṃ varākvāthaṃ pūrvavat tridinaṃ pibet //

Boiling it down until an eighth remains, one should drink it every night for three days;
thereafter, one should drink a decoction of the three myrobalans for three days, as before.