The Shariah cares about the rights of all people, even slaves, and even animals and cattle, as it obliges their owners to spend on them and observe their rights. How perfect the Shariah is! How comprehensive, upright, just, and complete the Shariah is! In this Hadīth, Khaythamah ibn ‘Abdur-Rahmān, one of the Tābi‘īs, informs that as they were sitting with ‘Abdullāh ibn ‘Amr (may Allah be pleased with him), one of his household managers came to him. ‘Abdullāh ibn ‘Amr (may Allah be pleased with him) asked him: "Did you give the slaves their sustenance?" Sustenance is the food that sustains the strength of one's body. He said: No, I did not give them their sustenance. So, ‘Abdullāh ibn ‘Amr (may Allah be pleased with him) commanded him to quickly go and give them the food. Then, he clarified the reason behind that, saying that the Prophet (may Allah's peace and blessings be upon him) said: "It is enough sin for a man," i.e., it is sufficient for a man as a means of incurring sins and misdeeds. "to withhold sustenance from those whom he should provide for," i.e., those he is obliged to spend on, like his family, dependents, and slaves. This means that if a person committed no other sin than withholding sustenance from those whom he should provide for, this would be enough as a sin for him that would make him worthy of entering Hellfire. In the Hadīth: We are enjoined to spend money on those whom we are obligated to provide for..