Canto 3 -
Araṇya-kāṇḍa
Chapter 54: Rāvaṇa Brings Sītā to Laṅkā
Text 3.54.24

निर्यातयितुमिच्छामि तच्च वैरमहं रिपोः।
न हि लप्स्याम्यहं निद्रामहत्वा संयुगे रिपुम्॥

niryātayitum icchāmi tac ca vairam ahaṁ ripoḥ
na hi lapsyāmy ahaṁ nidrām ahatvā saṁyuge ripum

niryātayitum = to to put an end; icchāmi = wish; tat ca = to this; vairam = animosity; aham = I; ripoḥ = towards my enemy; na hi lapsyāmi = won’t be able; aham = I; nidrām = to sleep; ahatvā = without killing; saṁyuge = in battle; ripum = my enemy.

I wish to put an end to this animosity towards my enemy. I won’t be able to sleep without killing my enemy in battle.