Ramayana
उद्योगं वानरेन्द्राणां प्लवनं सागरस्य च । व्यर्थं वीक्ष्यानिलसुतश्चिन्तां पुनरुपागमत् ॥ ५-१२-२४
The son of the Wind god, the great monkey realised the futility of his efforts in crossing the sea. He brooded again. ॥ 5-12-24॥
english translation
udyogaM vAnarendrANAM plavanaM sAgarasya ca । vyarthaM vIkSyAnilasutazcintAM punarupAgamat ॥ 5-12-24
hk transliteration by Sanscript