Mettāsutta AN 11.15, Good Will. Translated by Thanissaro Bhikkhu

“Monks, for one whose awareness-release through good will is cultivated, developed, pursued, handed the reins and taken as a basis, given a grounding, steadied, consolidated, and well-undertaken, eleven benefits can be expected. Which eleven?

“One sleeps easily, wakes easily, dreams no evil dreams. One is dear to human beings, dear to non-human beings. The devas protect one. Neither fire, poison, nor weapons can touch one. One’s mind gains concentration quickly. One’s complexion is bright. One dies unconfused and—if penetrating no higher—is headed for the Brahma worlds.

“These are the eleven benefits that can be expected for one whose awareness-release through good will is cultivated, developed, pursued, handed the reins and taken as a basis, given a grounding, steadied, consolidated, and well-undertaken.”

Dutiyasaṅgāmasutta, Battle (2nd) SN 3.15. Translated by Bhikkhu Sujato

Then King Ajātasattu of Magadha, son of the princess of Videha, mobilized an army of four divisions and marched to Kāsi to attack King Pasenadi of Kosala. When King Pasenadi heard of this, he mobilized an army of four divisions and marched to Kāsi to defend it against Ajātasattu. Then the two kings met in battle. And in that battle Pasenadi defeated Ajātasattu and captured him alive.

Then King Pasenadi thought, “Even though I’ve never betrayed this King Ajātasattu, he betrayed me. Still, he is my nephew. Now that I’ve vanquished all of Ajātasattu’s elephant troops, cavalry, chariots, and infantry, why don’t I let him loose with just his life?”

And that’s what he did.

Then several mendicants … told the Buddha what had happened.

Then, understanding this matter, on that occasion the Buddha recited these verses:

“A man goes on plundering

as long as it serves his ends.

But as soon as others plunder him,

the plunderer is plundered.

For the fool thinks they’re on solid ground,

so long as their wickedness has not ripened.

But as soon as that wickedness ripens,

they fall into suffering.

A killer creates a killer;

a conqueror creates a conqueror;

an abuser creates abuse,

and a bully creates a bully.

And so as deeds unfold

the plunderer is plundered.”

Paṭhamasaṅgāmasutta, Battle (1st) SN 3.14. Translated by Bhikkhu Sujato

At Sāvatthī.

Then King Ajātasattu of Magadha, son of the princess of Videha, mobilized an army of four divisions and marched to Kāsi to attack King Pasenadi of Kosala. When King Pasenadi heard of this, he mobilized an army of four divisions and marched to Kāsi to defend it against Ajātasattu. Then the two kings met in battle. And in that battle Ajātasattu defeated Pasenadi, who withdrew to his own capital at Sāvatthī.

Then several mendicants robed up in the morning and, taking their bowls and robes, entered Sāvatthī for alms. Then, after the meal, when they returned from almsround, they went up to the Buddha, bowed, sat down to one side, and told him what had happened. Then the Buddha said:

“Mendicants, King Ajātasattu has bad friends, companions, and associates. But King Pasenadi has good friends, companions, and associates. Yet on this day King Pasenadi will have a bad night’s sleep as one defeated.”

That is what the Buddha said. …

“Victory breeds enmity;

the defeated sleep badly.

The peaceful sleep at ease,

having left victory and defeat behind.”