Digha Nikaya 1:74
SUJATOYāvakīvañca, bhikkhave, bhikkhū paccattaññeva satiṁ upaṭṭhapessanti: ‘kinti anāgatā ca pesalā sabrahmacārī āgaccheyyuṁ, āgatā ca pesalā sabrahmacārī phāsu vihareyyun’ti. Vuddhiyeva, bhikkhave, bhikkhūnaṁ pāṭikaṅkhā, no parihāni.
As long as the mendicants individually establish mindfulness, so that more good-hearted spiritual companions might come, and those that have already come may live comfortably, they can expect growth, not decline.