Penances and Renunciation constitute the duties of Brahmanas. Such is also the ordinance about the next world, Indeed, O powerful one, death in battle is laid down for Kshatriyas.
ब्राह्मणानां तपस्त्यागः प्रेत्य धर्मविधिः स्मृतः। क्षत्रियाणां च निधनं संग्रामे विहितं प्रभो॥