Valmiki Ramayana Ayodhya Kanda Sarga 52 Shloka 68
Original Shlokaतत् क्षीरं राजपुत्राय गुहः क्षिप्रमुपाहरत्।।2.52.68।। लक्ष्मणस्यात्मनश्चैव रामस्तेनाकरोज्जटाः।
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गुहः Guha, क्षिप्रम् quickly, राजपुत्राय for the prince (Rama), तत् that, क्षीरम् milk, उपाहरत् brought , रामः Rama, तेन with that, लक्ष्मणस्य for Lakshmana, आत्मनश्चैव of his own, जटाः matted locks of hair, अकरोत् made.
Guha fetched the latex quickly and gave it to the prince (Rama) and with that Rama matted his own hair and Lakshmana's.