Reference request: no rest for those with ill will I am looking for a text that I recall having seen in which the Buddha says something like: There is no rest for those who are obsessed with thoughts such as 'he has wronged/harmed me' and similar.

It may have been the Dhammapada...any help is appreciated.
Yes that's verse 3 of the opening chapter of the Dhammapada,


Mind precedes all mental states. Mind is their chief; they are all mind-wrought. If with an impure mind a person speaks or acts suffering follows him like the wheel that follows the foot of the ox.

Mind precedes all mental states. Mind is their chief; they are all mind-wrought. If with a pure mind a person speaks or acts happiness follows him like his never-departing shadow.

&quot;He abused me, he struck me, he overpowered me, he robbed me.&quot; Those who harbor such thoughts do not still their hatred.

&quot;He abused me, he struck me, he overpowered me, he robbed me.&quot; Those who do not harbor such thoughts still their hatred.

Hatred is never appeased by hatred in this world. By non-hatred alone is hatred appeased. This is a law eternal.

There are those who do not realize that one day we all must die. But those who do realize this settle their quarrels.