BUKHARI 2445:
from al-Barāʾ b. ʿĀzib —
I heard Al-Bara' bin ʿAzib saying, "The Prophet ﷺ orders us to do seven things and prohibited us from doing seven other things." Then Al-Bara' mentioned the following:-- (1) To pay a visit to the sick (inquiring about his health), (2) to follow funeral processions, (3) to say to a sneezer, "May Allah be merciful to you" (if he says, "Praise be to Allah!"), (4) to return greetings, (5) to help the oppressed, (6) to accept invitations, (7) to help others to fulfill their oaths. (See Hadith No. 753, Vol. 7)
البخاري ٢٤٤٥:
عن البراء بن عازب —
أَمَرَنَا النَّبِيُّ ﷺ بِسَبْعٍ وَنَهَانَا عَنْ سَبْعٍ فَذَكَرَ عِيَادَةَ الْمَرِيضِ وَاتِّبَاعَ الْجَنَائِزِ وَتَشْمِيتَ الْعَاطِسِ وَرَدَّ السَّلاَمِ وَنَصْرَ الْمَظْلُومِ وَإِجَابَةَ الدَّاعِي وَإِبْرَارَ الْمُقْسِمِ