Matsya Purana 262.22

262.22

arccāyāmā samandairghyaṃ liṅgāyāmasamantathā.
yasya devasya yā patnī tāṃ pīṭhe parikalpayet ..
etatsarvaṃ samākhyātaṃ samāsātpīṭhalakṣaṇam .. 262.21

Thus is described, in brief, about the pedestals

Ten such thrones have been described for Divine worship If the Devatâ be made of stone, then the pedestal is also to be made of stone If the Devatâ is made of earth then the pedestal is to be also made of earth, and if of wood, then the pedestal also of wood, and if the Deva be of a mixture, then the pedestal should be also of both mixed The persons desirous of auspicious results should not deviate from the above prescribed rules. Round the idol a big platform should be made and the Consort of the Lord should be located with His image—19-21