Tatiyarukkhasutta

Suttapiṭaka · Saṁyuttanikāya · Mahāvaggasaṁyutta · Vol. 19 · Section 1078

[1078] Bhikkhus, just as, among whatever trees of the asuras there may be, the Cittapāṭalī is declared the foremost of them; so too, bhikkhus, among whatever dhammas that are on the side of awakening (bodhipakkhiyā dhammā), the faculty of wisdom (paññindriya) is declared the foremost of them — that is, for awakening.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 1 other place

Vol. 19 · Section 1041 — Sārasutta