Shiva Purana
प्रसादनीय इत्यन्तं सर्व्व त्रैवं विधिक्रमः ॥ एवं समाप्य वरणं मण्डलानि प्रकल्पयेत् ॥ ५२ ॥
The order of the rituals is thus all three at the end of which is to be satisfied. Thus completing the covering, one should arrange the circles.
english translation
prasAdanIya ityantaM sarvva traivaM vidhikramaH ॥ evaM samApya varaNaM maNDalAni prakalpayet ॥ 52 ॥
hk transliteration by Sanscript