—as Allah, Exalted be He, says:
“As for him who gives, is mindful of God, and believes in the best promise, We shall ease his way to ease” (al-Layl 92:5-7).
The Messenger of Allah (peace and blessings be upon him) also said, “It is enough evil for a person to despise his Muslim brother.” That is, if a man had no other sin than belittling his brother, that alone would suffice to condemn him. This shows how grave the sin is for anyone who looks down on his fellow Muslims, for a Muslim is required to honor and esteem his brothers and to hold them in high regard. To scorn or disparage them is a sin so weighty that it demands expiation—may Allah grant us safety.
He ﷺ further said, “Every Muslim is inviolable to every other Muslim: his blood, his wealth, and his honor.” In other words, a Muslim is sacrosanct to another Muslim in all respects, for these three matters encompass everything. “Blood” covers killing, wounding, and similar offenses; “honor” includes backbiting and any form of insult; and “wealth” refers to unlawfully consuming another’s property. This can occur through theft, through usurpation—seizing property by force—through denying a rightful debt, or through claiming something that is not his, and the like.
All such acts are forbidden. A Muslim must respect his brother’s wealth, life, and honor.