Manasara 30.28

30.28

nirgamāṅge mahāśālā kṣudraśālā saveśanam
yattatprāsādamadhye tu mahāśālā prakalpayet

The great barrel-vaulted hall is situated in the projecting part, and the small hall has an entrance-way; / one should arrange the great barrel-vaulted hall precisely in the center of the temple;