Abu Huraira reported: The Messenger of Allah, peace and blessings be upon him, said:

مَنْ كَانَ يُؤْمِنُ بِاللهِ وَالْيَوْمِ الْآخِرِ فَلَا يُؤْذِ جَارَهُ وَمَنْ كَانَ يُؤْمِنُ بِاللهِ وَالْيَوْمِ الْآخِرِ فَلْيُكْرِمْ ضَيْفَهُ وَمَنْ كَانَ يُؤْمِنُ بِاللهِ وَالْيَوْمِ الْآخِرِ فَلْيَقُلْ خَيْرًا أَوْ لِيَصْمُتْ

Whoever believes in Allah and the Last Day, let him not harm his neighbor. Whoever believes in Allah and the Last Day, let him honor his guest. Whoever believes in Allah and the Last Day, let him speak goodness or remain silent.

Source: Ṣaḥīḥ al-Bukhārī 6136