Canto 3 -
Araṇya-kāṇḍa
Chapter 47: Rāvaṇa Reveals his Identity to Sītā
Text 3.47.40

अक्षि सूच्या प्रमृजसि जिह्वया लेक्षि च क्षुरम्।
राघवस्य प्रियां भार्यां योऽधिगन्तुं त्वमिच्छसि॥

akṣi sūcyā pramṛjasi jihvayā lekṣi ca kṣuram
rāghavasya priyāṁ bhāryāṁ yo ’dhigantuṁ tvam icchasi

akṣi = your eye; sūcyā = with a needle; pramṛjasi = clean; jihvayā = with your tongue; lekṣi = lick; ca = and; kṣuram = a sharp razor blade; rāghavasya = Rāghava’s; priyām = dear; bhāryām = wife; yaḥ = who; adhigantum = to get; tvam = You; icchasi = want.

You, who want to get Rāghava’s dear wife, clean your eye with a needle and lick a sharp razor blade with your tongue.