From Asanga's Abhidharmasamuccaya, Section II Viniscayasamuccaya, The Compendium of Determining, pgs 130-131:
The Blessed One said: "Beings have actions as their own property, are the inheritors of their own actions, have their actions as womb, have their actions as refuge. Action divides all beings into higher and lower, superior and inferior states."
in MMK (Chpt XVII), Nagarjuna cites the Buddha:
["The Unsurpassed Sage has said
That actions are either intention or intentional.]
The varieties of these actions
Have been delineated in many ways.
Of these, what is called 'intention'
Is maintained to be mental.
What is called 'intentional'
Comprises the physical and the verbal."
Any idea where specifically in the sutras the Buddha says "...actions are either intention or intentional"?