Definition of a Muslim and a Muhajir

عَنْ عَبْد اللَّهِ بْنَ عَمْرٍو، يَقُولُ قَالَ النَّبِيُّ صلّى الله عليه وسلّم: الْمُسْلِمُ مَنْ سَلِمَ الْمُسْلِمُونَ مِنْ لِسَانِهِ وَيَدِهِ، وَالْمُهَاجِرُ مَنْ هَجَرَ مَا نَهَى الله عَنْهُ.‏

Hazrat Abdullah^ra ibn Amr narrated that “The Prophet^sa declared, ‘A Muslim is one from whose tongue and hands other Muslims are safe. And a Muhajir [emigrant] is one who abandons what Allah has prohibited.”

(Sahih al-Bukhari, Kitab ar-riqaq, Bab al-intihai’i ‘ani l-ma‘asi, Hadith 6484)