Upaniṣads · Bṛhadāraṇyaka 5.11

Bṛhadāraṇyaka 5.11.1

एतद्वै परमं तपो यद्व्याहितस्तप्यते ।
परमं हैव लोकं जयति य एवं वेद ।
एतद्वै परमं तपो यं प्रेतमरण्यं हरन्ति ।
परमं हैव लोकं जयति य एवं वेद ।
एतद्वै परमं तपो यं प्रेतमग्नावभ्यादधति ।
परमं हैव लोकं जयति य एवं वेद ॥ ५.११.१ ॥

This indeed is the supreme austerity: one who, afflicted with grief, performs austerity. Whoever knows thus wins the supreme world. This indeed is the supreme austerity: when people carry the dead to the forest. Whoever knows thus wins the supreme world. This indeed is the supreme austerity: when people place the dead in the fire. Whoever knows thus wins the supreme world.