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Abhidhammapiṭaka · Vibhaṅga · Vol. 35 · Section 663

[663] "Born of concentration (samādhijaṃ)": serene confidence (sampasāda), rapture (pīti), happiness (sukha), and one-pointedness of mind (citta) — these are born, well-born, produced, fully produced, and made manifest in this concentration (samādhi). Therefore it is called "born of concentration."

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

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Vol. 35 · Section 653 — Suttantabhājanīya