Guru Gita
durlabham triśu lokeśu tacchrunuṣva vadāmyahaṁ | gurubrahma vinā nānyaḥ satyam satyam varānane || 21 ||
21. O lovely-faced one (Pārvatī), listen to My words and believe, for this Truth is rare and unknown to any one else in the three worlds. Guru is Brahman and no one other than Brahman Itself. This is the Truth. This is the Truth, I declare.