Valmiki Ramayana Kishkindha Kanda Sarga 14 Shloka 10

वानर O monkey, अद्य now, अहम् I, संयुगे in combat, एकेन by a single, बाणमोक्षेण by the release of an arrow, ते to you, वालिसमुत्थम् caused by Vali, भयम् fear, वैरं च and enmity, प्रमोक्ष्यामि I will dispel

'O monkey, with the release of a single arrow in the combat, I shall dispel your fear and enmity (hatred) for Vali.