“Monks, without abandoning six things, one is incapable of entering & remaining in the first jhāna. Which six? Thoughts of sensuality, thoughts of ill will, thoughts of harmfulness; perceptions of sensuality, perceptions of ill will, perceptions of harmfulness. Without abandoning these six things, one is incapable of entering & remaining in the first jhāna.”
AN6.74: Jhāna Sutta
Jhāna Sutta: Jhāna (2) - translated by Thanissaro Bhikkhu
Translated by Thanissaro Bhikkhu. Source text via dhammatalks.org.