Ijow 29:16 Halacha: Kitzur Shulchan Arukh

It is forbidden to turn away a poor person, empty handed, even if you give him only a dried fig [a mere pittance], as it is said: "Let not the oppressed turn back in disgrace."²²Psalms 74:21. And if you have nothing to give him, console him with words. It is forbidden to scold a poor person or to raise your voice to him in a shout, because he is brokenhearted and humbled, as it is said: "A heart that is broken and humbled God does not despise."²³Psalms 51:19. Woe is to him who embarrasses the poor. Rather act towards him like a father, both in [feelings of] compassion and with words, as it is said: "I was a father to the poor."²⁴Job 29:16.