Bhayabheravasutta

Suttapiṭaka · Majjhimanikāya · Vol. 12 · Section 30

[30] "To me too, brahmin, before my awakening, while I was still an unawakened bodhisatta, this thought occurred: 'Remote lodgings in the wilderness and forest thickets are hard to endure; seclusion (paviveka) is hard to practice; solitude is hard to delight in. The forests, it seems, carry away the mind of a bhikkhu who does not obtain concentration (samādhi).'"

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.