Mettāsahagatasutta

Suttapiṭaka · Saṁyuttanikāya · Mahāvaggasaṁyutta · Vol. 19 · Section 588

[588] … with a mind (citta) imbued with altruistic joy (muditā) …

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

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