The Tipiṭaka in Three Languages

Ekādasakamātikā

Abhidhammapiṭaka · Dhammasaṅgaṇī · Vol. 34 · Section 580

[580] Which is that form that is lightness of form (rūpassa lahutā)? That which is lightness of form — quickness of change, absence of sluggishness, absence of inertia — this is that form which is lightness of form. Which is that form that is not lightness of form? The eye sense base (cakkhāyatana) … edible nutriment (kabaḷīkāra āhāra) — this is that form which is not lightness of form.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 5 other places