Saṅgītisutta

Suttapiṭaka · Dīghanikāya · Pāthikavagga · Vol. 11 · Section 234

[234] Four immeasurables (appamaññā): Here, friends, a bhikkhu dwells pervading one quarter with a mind imbued with loving-kindness (mettā), likewise the second, likewise the third, likewise the fourth; thus above, below, across, everywhere, and to all as to himself, he dwells pervading the entire world with a mind imbued with loving-kindness—abundant, exalted, immeasurable, free from enmity, free from affliction. With a mind imbued with compassion (karuṇā) … With a mind imbued with altruistic joy (muditā) … He dwells pervading one quarter with a mind imbued with equanimity (upekkhā), likewise the second, likewise the third, likewise the fourth; thus above, below, across, everywhere, and to all as to himself, he dwells pervading the entire world with a mind imbued with equanimity—abundant, exalted, immeasurable, free from enmity, free from affliction.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.