Mishkat al-Masabih 6
‘Abdallah b. ‘Amr reported God's messenger as saying, “The Muslim is he from whose tongue and hand the Muslims are safe, and the Emigrant is he who abandons what God has prohibited.” 

This is Bukhari’s wording. 
Muslim has:
A man asked the Prophet, “Which of the Muslims is best?” He replied, “He from whose tongue and hand the Muslims are safe.”.
وَعَنْ عَبْدِ اللَّهِ بْنِ عَمْرٍو قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ «الْمُسْلِمُ مَنْ سَلِمَ الْمُسْلِمُونَ مِنْ لِسَانِهِ وَيَدِهِ وَالْمُهَاجِرُ مَنْ هَجَرَ مَا نَهَى اللَّهُ عَنْهُ» هَذَا لَفْظُ الْبُخَارِيِّ وَلِمُسْلِمٍ قَالَ: 
" إِنَّ رَجُلًا سَأَلَ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: أَيُّ الْمُسْلِمِينَ خَيْرٌ؟ قَالَ: مَنْ سَلِمَ الْمُسْلِمُونَ من لِسَانه وَيَده "