JhānavibhaṅgaSuttantabhājanīya

Abhidhammapiṭaka · Vibhaṅga · Vol. 35 · Section 621

[621] "Gone to a forest, or gone to the root of a tree, or gone to an empty dwelling (suññāgāra)" means: he is one who has gone to a forest, or who has gone to the root of a tree, or who has gone to an empty dwelling.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.