*!* Among the best qualities of a Muslim! *!*

Bismillaah!
Assalaam O Alaikum Wa Rahmatullahe Wabarakatuh!

عَنْ عَبْدِ اللَّهِ بْنِ عَمْرٍو رَضِيَ اللَّهُ عَنْهُمَا أَنَّ رَجُلا سَأَلَ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَيُّ الإِسْلامِ خَيْرٌ قَالَ تُطْعِمُ الطَّعَامَ وَتَقْرَأُ السَّلامَ عَلَى مَنْ عَرَفْتَ وَمَنْ لَمْ تَعْرِفْ

'Abdullaah ibn 'Amr (radiyallaahu 'anhu) reported that a man asked the Messenger of Allaah (sallallaahu 'alayhi wa sallam) "Which qualities of Islaam are the best?" He replied,"Feed the people, and extend the greeting of salaam to those (Muslims) whom you know and those whom you do not know."

[collected by al-Bukhaaree and Muslim]

Source.

WaAlaikumAssalaam Warahmatullahe Wabarakatuh!