Beware of the invocations of the oppressed person, for, indeed, they rise to heaven as if they were sparks of fire

Explanation of the hadith

Avoid oppression, and fear the supplication of the oppressed one, for it ascends to Allah in the heavens as if it is a spark of fire. It was compared to a spark in the swiftness of its rise in the sky, or because it comes out of a heart that is burning with the fire of injustice and suffering, and it is like the spark in the way it penetrates the heavenly barriers.