Honour the guest
مَنْ كَانَ يُؤْمِنُ بِاللَّهِ وَالْيَوْمِ الْآخِرِ فَلْيُكْرِمْ ضَيْفَهُ
Man kana yu'minu billahi wa-l-yawmi-l-akhir fa-l-yukrim dayfah.
"Whoever believes in Allah and the Last Day, let him honour his guest."
Narrated by Abu Hurayrah. Sahih al-Bukhari 6138, Sahih Muslim 47
A short reflection
Paired with speak-good-or-silent and honour your neighbour. Three tests of the same claim of iman.