Shiva Purana
तत्र यः शान्त्यतीतादिकलासु विहितो विधिः ॥ स सर्वो ऽपि विधातव्यस्तत्त्वत्रयविशोधने ॥ २६ ॥
In the purificatory rite of the three Tattvas the rites mentioned for the Kalās Śāntyatīta and others shall be performed.
english translation
tatra yaH zAntyatItAdikalAsu vihito vidhiH ॥ sa sarvo 'pi vidhAtavyastattvatrayavizodhane ॥ 26 ॥
hk transliteration by Sanscript