Shiva Purana
आचार्यं वरयेत्तत्र चर्त्विग्भिस्सहितं शुचिम् ॥ अनुज्ञातश्च तैर्भक्त्या शिवपूजां समाचरेत् ॥ ११ ॥
He shall woo a pious preceptor accompanied by Ṛtviks. With their formal permission he shall begin the worship of Śiva.
english translation
AcAryaM varayettatra cartvigbhissahitaM zucim ॥ anujJAtazca tairbhaktyA zivapUjAM samAcaret ॥ 11 ॥
hk transliteration by Sanscript