If you did not mean to cause harm, you need not worry about the incident. You should apologize.

 

In future, you need to watch your words. The Prophet, peace be upon him, said, “Most of the people find themselves languishing in hell primarily because of their misuse of their tongues.” (At-Tirmidhi). Therefore, he advised us, “Whoever believes in Allah and the Last day should speak the truth or remain silent.” (Muslim)

 

Almighty Allah knows best.