Bhagavad Gita · 9.33
किं पुनर्ब्राह्मणाः पुण्या भक्ता राजर्षयस्तथा।अनित्यमसुखं लोकमिमं प्राप्य भजस्व माम्॥
kiṁ punar brāhmaṇāḥ puṇyā bhaktā rājarṣhayas tathā anityam asukhaṁ lokam imaṁ prāpya bhajasva mām
How much more then the pious brahmins and the devoted saintly kings! Having come to this temporary and joyless world, devote yourself to Me.
— Bhagavad Gita 9.33
Source: Sacred-Texts.com (Sanskrit) + Bhagavad-Gita.io (translations)