A Muslim is the one from whose tongue and hand Muslims are safe, and a Muhājir (emigrant) is the one who abandons what Allah has forbidden

Explanation

The Prophet (may Allah's peace and blessings be upon him) informed that a true and perfect Muslim is the one from whose tongue Muslims are safe, so he does not insult, curse, or backbite them and does not hurt them with his tongue in any way. They are also safe from his hand, as he does not assault them or take their properties wrongfully, or the like. As for the emigrant, he is the one who abandons what Allah Almighty has prohibited.

Benefits

• One's Islam is perfect only when he does not harm others physically or morally.
• The tongue and the hand were mentioned in particular given their frequent mistakes and harms, as they are the source of most of the evil.
• Encouraging the abandonment of sins and adherence to the commands of Allah Almighty.
• The best Muslims are those who fulfill the rights of Allah Almighty and the rights of the Muslims.
• Assault could be verbal or physical.
• The perfect emigration is abandoning what Allah Almighty has forbidden.