Valmiki Ramayana Ayodhya Kanda Sarga 85 Shloka 18
Original Shlokaप्रसृतस्सर्वगात्रेभ्यस्स्वेदं शोकाग्निसम्भवम्। यथा सूर्यांशुसन्तप्तो हिमवान् प्रसृतोहिमम्।।2.85.18।।
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सूर्यांशुसन्तप्तः heated by the Sun's rays, हिमवान् Himalayas, यथा just as, हिमं ice, प्रसृतः melted, सर्वगात्रेभ्यः from all limbs, शोकाग्निसम्भवम् caused by the fire of grief, स्वेदम् sweat, प्रसृतः poured out.
Like the ice melted by the heat of the Sun's rays flows down the Himalayas, sweat poured from all parts of his body caused by the fire of grief.