Manusmriti

siva.sh/manusmriti/2/155

विप्राणां ज्ञानतो ज्यैष्ठ्यं क्षत्रियाणां तु वीर्यतः । वैश्यानां धान्यधनतः शूद्राणामेव जन्मतः ॥ १५५ ॥

sanskrit

The seniority of Brahmanas is from (sacred) knowledge, that of Kshatriyas from valour, that of Vaisyas from wealth in grain (and other goods), but that of Sudras alone from age.

english translation

viprANAM jJAnato jyaiSThyaM kSatriyANAM tu vIryataH | vaizyAnAM dhAnyadhanataH zUdrANAmeva janmataH || 155 ||

hk transliteration by Sanscript