Anandakanda 1.24.35

1.24.35

saptadvandvajamekaikaṃ saptame'ṣṭapalaṃ bhavet /
śalyāviśalyāmūlasya vāriṇā mardayeddinam //

one [part] produced from seven pairs, on the seventh [stage] it becomes eight palas.
One should grind it for a day with water of the roots of śalyā and viśalyā;