Abu Musa reported: They said, “O Messenger, of Allah, whose Islam is best?” The Messenger of Allah, peace and blessings be upon him, said:
مَنْ سَلِمَ الْمُسْلِمُونَ مِنْ لِسَانِهِ وَيَدِهِ
One from who tongue and hand Muslims are safe.
Source: Ṣaḥīḥ al-Bukhārī 11, Grade: Muttafaqun Alayhi