Ill will ☁️ quality
In As It Was Said (Itivuttaka)
The Buddha shares the consequences for a person acting with an upset mind based on his direct knowledge.
The three unwholesome thoughts are blinding, produce lack of clarity, cause ignorance, obstruct wisdom, and are troublesome and not conducive to Nibbāna. The three wholesome thoughts give sight, produce clarity and create insight, grow wisdom, and are trouble-free and conducive to Nibbāna.
The Buddha explains how the livelihood of subsisting on alms, although an extreme of livelihoods, is a sensible choice for those who hope to discern a complete end to the entire mass of suffering.
In Middle Length Discourses (Majjhima Nikāya)
The Buddha explains how he divided his thoughts into two kinds - 1) thoughts of sensual desire, ill will, and harm; and 2) thoughts of relinquishment, non-ill will, and non-harm. He explains how he abandoned harmful thoughts and cultivated wholesome thoughts, leading to the attainment of the four jhānas and the three knowledges.