Dutiyarukkhasutta

Suttapiṭaka · Saṁyuttanikāya · Mahāvaggasaṁyutta · Vol. 19 · Section 1073

[1073] Bhikkhus, just as, of whatever trees belong to the devas of Tāvatiṃsa, the Pāricchattaka tree is declared the foremost of them; even so, bhikkhus, of whatever states 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English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.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