Valmiki Ramayana Ayodhya Kanda Sarga 40 Shloka 7
Original Shlokaइदं हि वृत्तमुचितं कुलस्यास्य सनातनम्। दानं दीक्षा च यज्ञेषु तनुत्यागो मृधेषु च।।2.40.7।।
1 source checked for this shloka
दानम् charity, यज्ञेषु in sacrifices, दीक्षा च initiation, मृधेषु in battles, तनुत्यागः च giving one's body, इदम् this one, अस्य कुलस्य of this race, उचितम् befitting, सनातनम् ancient, वृत्तं हि is the tradition.
Charity, initiation at sacrifices and yielding life in battles are the befitting ancient traditions prevailing in your race.