Trường Bộ Kinh (Digha Nikaya) 1:73
SUJATOYāvakīvañca, bhikkhave, bhikkhū āraññakesu senāsanesu sāpekkhā bhavissanti, vuddhiyeva, bhikkhave, bhikkhūnaṁ pāṭikaṅkhā, no parihāni.
As long as the mendicants take care to live in wilderness lodgings, they can expect growth, not decline.