Matsya Purana 58.40

58.40

pūrvedyurabhito rātrāvevaṃ kṛtvādhivāsanam.
gajāśvarathyāvalmīkāt saṅgamādradagokulāt..

After performing the above-mentioned ceremonies on the first day, adhivâsana should be done, and then the earth of the following places, viz., Elephant ward, stable, well, lane, pool, cattle-shed, ant-hill, the place where four streets meet, should be put into the pitchers full of water (placed in the pandal).—38.