Valmiki Ramayana Sundara Kanda Sarga 1 Shloka 31
Original Shlokaइति विद्याधराः श्रुत्वा वचस्तेषां महात्मनाम्। तमप्रमेयं ददृशुः पर्वते वानरर्षभम्।।5.1.31।।
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विद्याधराः vidyadharas, इति thus, महात्मनाम् of great sages, तेषाम् of them, वचः word, श्रुत्वा having heard, पर्वते on the mountain, अप्रमेयम् beyond measure, वानरर्षभम् bull among the vanaras, Hanuman, तम् him, ददृशुः saw.
The vidyadharas heard the sages speaking in that manner on the mountain. They beheld Hanuman, the bull among vanaras, whose strength was beyond measure.