The Chapter on Perfection
AN 6.75 Suffering Dukkhasutta
"Mendicants, when a mendicant has six qualities they live unhappily in this very life—with distress, anguish, and fever—and when the body breaks up, after death, they can expect a bad rebirth. What six? Sensual, malicious, and cruel thoughts; and sensual, malicious, and cruel perceptions. When a mendicant has these six qualities they live unhappily in this very life—with distress, anguish, and fever—and when the body breaks up, after death, they can expect a bad rebirth.
When a mendicant has six qualities they live happily in this very life—without distress, anguish, or fever—and when the body breaks up, after death, they can expect a good rebirth. What six? Thoughts of renunciation, good will, and harmlessness. And perceptions of renunciation, good will, and harmlessness. When a mendicant has these six qualities they live happily in this very life—without distress, anguish, or fever—and when the body breaks up, after death, they can expect a good rebirth."