Shiva Purana
ततश्च कारयेद्दिव्यं मण्डलं तत्र यत्नतः॥ गौरीतिलकनाम्ना वै प्रसिद्धं भुवनत्रये॥ ५॥
Then one should carefully make a divine circle there It is known in the three worlds as Gauri Tilaka.
english translation
tatazca kArayeddivyaM maNDalaM tatra yatnataH॥ gaurItilakanAmnA vai prasiddhaM bhuvanatraye॥ 5॥
hk transliteration by Sanscript