Valmiki Ramayana Ayodhya Kanda Sarga 73 Shloka 15
Original Shlokaतं हि नित्यं महाराजो बलवन्तं महाबलः। उपाश्रितोऽभूद्धर्मात्मा मेरुर्मेरुवनं यथा।।2.73.15।।
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महाबलः mighty, धर्मात्मा righteous one, महाराजः great king, नित्यम् always, बलवन्तम् all powerful, तम् Rama, मेरुः mount Meru, मेरुवनं यथा just as the forest surrounding Meru, उपाश्रितः अभूत् हि used to rely upon.
The mighty and righteous maharaja used to rely upon the powerful Rama just as mount Meru depends on the forest surrounding it for its protection.