Cattāri Brahmavihārā

“What taints, bhikkhus, should be abandoned by removing?

Here a bhikkhu, reflecting wisely, does not tolerate an arisen thought of sensual desire; he abandons it, removes it, does away with it, and annihilates it.

He does not tolerate an arisen thought of ill will…

He does not tolerate an arisen thought of cruelty…

He does not tolerate arisen evil unwholesome states; he abandons them, removes them, does away with them, and annihilates them.

While taints, vexation, and fever might arise in one who does not remove these thoughts, there are no taints, vexation, or fever in one who removes them. These are called the taints that should be abandoned by removing.

https://suttacentral.net/en/mn2/27
Majjhima Nikāya
Middle Length Discourses
Sabbāsava Suttaṃ