Ramayana
तौ तु तद्वचनं श्रुत्वा राजपुत्रौ यशस्विनौ । अनिद्रौ षडहोरात्रं तपोवनमरक्षताम् ॥ १-३०-५
At these words of the sages the illustrious princes got ready to protect the tapovana for six days and six nights without sleep. ॥ 1-30-5॥
english translation
tau tu tadvacanaM zrutvA rAjaputrau yazasvinau । anidrau SaDahorAtraM tapovanamarakSatAm ॥ 1-30-5
hk transliteration by Sanscript