Shiva Purana
यथा शिवस्तथा विद्या यथा विद्या तथा गुरुः ॥ शिवविद्या गुरूणां च पूजया सदृशं फलम् ॥ २१ ॥
As is Śiva so the knowledge. As is the knowledge so is the preceptor. The benefit is similar in the worship of Śiva, knowledge or the preceptor.
english translation
yathA zivastathA vidyA yathA vidyA tathA guruH ॥ zivavidyA gurUNAM ca pUjayA sadRzaM phalam ॥ 21 ॥
hk transliteration by Sanscript