Anandakanda 2.5.54

2.5.54

trisaptāhaṃ prayatnena dinaikaṃ mardayettataḥ /
ruddhvā gajapuṭe pacyāddinaṃ kvāthena mardayet //

carefully for three weeks; then one should grind it for one day; / sealing it, one should cook it in an elephant pit; for a day one should grind it with the decoction.