Valmiki Ramayana Sundara Kanda Sarga 37 Shloka 58
Original Shlokaमयि जीवितमायत्तं राघवस्य महात्मनः। भ्रात्रूणां च महाबाहो तव राजकुलस्य च।।5.37.58।।
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महाबाहो strongarmed one, महात्मनः of the great self, राघवस्य Rama's, भ्रात्रूणाम् of his brothers, तव your, राजकुलस्य of the relatives of your king, जीवितम् life, मयि in me, आयत्तम् is dependent.
"O strongarmed Hanuman your life and the life of the great self Rama, of his brother, and relatives of your king is dependent upon my survival.