anumaana sutta

Dear Jim,
I hope you have returned safely and well.
I have a question, but only if you have time. that also Robert could solve,
but I do not know whether he has access easily.

M I, no 15, Anumaanasutta,  PTS:
<But if, your reverences, that monk, while reflecting, knows thus: “I am not
of evil desires, not in the thrall of evil desires.” then, with rapture and
delight that monk should forsake them, training day and night in skilled
states.>
N: forsake is strange. I followed the Thai:

<But if, your reverences, that monk, while reflecting, knows thus: “I am not
of evil desires, not in the thrall of evil desires.” then, with rapture and
delight, he should day and night train himself diligently in skilled
states.>
What is the Pali for this?

A similar passage in Ang. Book of Tens, ChVI, §1, at end: <then that monk
should make effort to establish just those profitable states and further to
destroy the cankers.>
Thank you,
Nina.