The Meaning of Cursing and Its Effect on Creed

Question:
And may Allah bless you. The brother Ahmad says: My tongue has become accustomed to cursing over the most trivial things, and when I mix with my colleagues, brothers, and family. Does this cursing affect my creed? And what is the meaning of cursing in this context?

Answer:
Cursing is expulsion and distance from the mercy of Allah. So you are calling upon your brother for Allah to expel him from His mercy. This is a great danger. The Prophet (peace and blessings be upon him) said: "Cursing a believer is like killing him." You called upon him to be taken out of the mercy of Allah, so you have taken him out of the mercy of Allah, just as the killer takes a person out of life into death. This is an ugly word, so do not accustom your tongue to it. Seek forgiveness from Allah and turn to Him in repentance, and fear its punishments. If you say it about someone who does not deserve it, it will return to you; its sin and punishment will return to you. Yes.