Shiva Purana
अथवा परिकल्प्यैवमासनं मूर्तिमेव च ॥ सकलीकृत्य मूलेन ब्रह्माभिश्चापरैस्तथा ॥ ३३ ॥
Or else you may arrange a seat and an idol in this way. They were collected by the root and by the Brahmans and others.
english translation
athavA parikalpyaivamAsanaM mUrtimeva ca ॥ sakalIkRtya mUlena brahmAbhizcAparaistathA ॥ 33 ॥
hk transliteration by Sanscript