Verse 46

गुरुर्ब्रह्मागुरुर्विष्णुः ।गुरुर्देवोमहेश्वरः ॥गुरुरेकंपरंब्रह्म ।तस्मैश्रीगुरवेनमः ॥

In plain words

The guru is Brahmā, the guru is Viṣṇu, the guru is the god Maheśvara. The guru is the one supreme brahman: to that Śrī Guru, salutation.