Shiva Purana
तस्माल्लिंगानि संवीक्ष्य शक्तिपातस्य भूयसः ॥ ज्ञानेन क्रियया वाथ गुरुश्शिष्यं विशोधयेत् ॥ १४ ॥
Hence, observing the symbols for securing Śakti, the preceptor shall purify and consecrate the disciple either by knowledge or by means of rites.
english translation
tasmAlliMgAni saMvIkSya zaktipAtasya bhUyasaH ॥ jJAnena kriyayA vAtha guruzziSyaM vizodhayet ॥ 14 ॥
hk transliteration by Sanscript