योगुरुःसशिवःप्रोक्तो ।यः शिवः स गुरुः स्मृतः ॥विकल्पंयस्तुकुर्वीत ।सनरोगुरुतल्पगः ॥
In plain words
He who is the guru is declared to be Śiva; he who is Śiva is remembered as the guru. The man who makes any division between them has gone to his guru's bed.