गुरुंत्वंकृत्यहुंकृत्य ।गुरुसान्निध्यभाषणः ॥अरण्येनिर्जलेदेशे ।सभवेद्ब्रह्मराक्षसः ॥
In plain words
He who says you to the guru, who makes the sound hum at him, whose talking goes on in the guru's presence, becomes a brahmarākṣasa in a wilderness, in a waterless country.