Shiva Purana
तन्मध्ये लेखयेद्दिव्यं लिंगतो भद्रमण्डलम्॥ अथवा सर्वतोभद्रं मण्डपान्तः प्रकल्पयेत् ॥ ६॥
In the middle of the mystical diagram Liṅgatobhadra and Sarvatobhadra shall be delineated.
english translation
tanmadhye lekhayeddivyaM liMgato bhadramaNDalam॥ athavA sarvatobhadraM maNDapAntaH prakalpayet ॥ 6॥
hk transliteration by Sanscript