Manusmriti

siva.sh/manusmriti/9/108

पितेव पालयेत् पूत्रान् ज्येष्ठो भ्रातॄन् यवीयसः । पुत्रवत्चापि वर्तेरन् ज्येष्ठे भ्रातरि धर्मतः ॥ १०८ ॥

sanskrit

As a father (supports) his sons, so let the eldest support his younger brothers, and let them also in accordance with the law behave towards their eldest brother as sons (behave towards their father).

english translation

piteva pAlayet pUtrAn jyeSTho bhrAtRRn yavIyasaH | putravatcApi varteran jyeSThe bhrAtari dharmataH || 108 ||

hk transliteration by Sanscript