Rasendracudamani 5.150

5.150

vahniṃ prajvālayettatra mahāpuṭamidaṃ smṛtam /
{gajapuṭa}
rājahastapramāṇena caturasraṃ ca nimnakam //

One should kindle a fire there; this is known as the *mahāpuṭa*. / [The elephant heating (gajapuṭa):] / [A pit] one royal cubit in measurement, square and sunken;