Ramayana
नान्यं जानाति विप्रेन्द्रो नित्यं पित्रनुवर्तनात् । द्वैविध्यं ब्रहचर्यस्य भविष्यति महात्मनः ॥ १-९-५
Not knowing others, that Brahman the best, namely Rishyasringa, will always be abiding his father and he will follow celibacy of two kinds Brahmanical vows namely vratitva , praajaapatya .Or Not knowing others that Brahman the best, will always be abiding his father, lest his renowned celibacy always praised by the Brahmans, will be hindered. ॥ 1-9-5॥
english translation
nAnyaM jAnAti viprendro nityaM pitranuvartanAt । dvaividhyaM brahacaryasya bhaviSyati mahAtmanaH ॥ 1-9-5
hk transliteration by Sanscript