प्रथमं मृच्छिलादिभ्यो लिगं लोहादिभिः कृतम् । येन लिंगं तेन पीठं स्थावरे हि विशिष्यते ७ ।
At first, the emblem was made of earth or rock; then it used to be made with the metals. If it is stationary, the emblem and the Pīṭha should be of the one and the same material.