Aṅguttara Nikāya
Ekakanipātapāḷi
Akammaniyavaggo
AN1.23
'I don't, almsmen, see also another one principle what uncultivated leads to such a great unsettlement as this, almsmen; the mind. The mind, almsmen, uncultivated leads to great unsettlement.'
AN1.24
'I don't, almsmen, see also another one principle what cultivated leads to such a great settlement as this, almsmen; the mind. The mind, almsmen, cultivated leads to great settlement.'