Anandakanda 1.26.230

1.26.230

<kapotapuṭam>
yatpuṭaṃ dīyate bhūmāvaṣṭasaṃkhyairvanotpalaiḥ /
tadbālasūtabhasmārthaṃ kapotapuṭamucyate //

<Pigeon puṭa>
The puṭa which is given on the ground with wild cow-dung cakes numbering eight,
for the sake of the ash of young mercury, that is called the pigeon puṭa.