זוהר ויקרא — דף ט ע”א

The poor are considered the King's vessels — "a broken and contrite heart" — and when famine afflicts them and they cry out, the Holy One, blessed be He, draws them close and punishes the wicked rich who caused the famine. The text tells of a rich man who brought an offering of two doves (the poor man's offering) and was turned away by the priest; after vowing never again to entertain a sinful thought, he studied Torah at night with his brothers and was called "the other Yehuda," and so gave away half his wealth to the poor. It then explains that the offering of Yitro, Moses' father-in-law, was precious before the Holy One, blessed be He, because he had shown peace toward Israel, unlike Amalek.