وعن أبي عمارة البراء بن عازب رضي الله عنهما
قال: أمرنا رسول الله صلى الله عليه وسلم بسبع: بعيادة المريض، واتباع الجنائز، وتشميت العاطس، ونصر الضعيف، وعون المظلوم، وإفشاء السلام وإبرار المقسم
The Messenger of Allah (sallallahu alayhi wa sallam) commanded us to do seven things: to visit the sick, to follow the funeral (of a dead believer), to invoke the Mercy of Allah upon one who sneezes (i.e., by saying to him: Yarhamuk- Allah), to support the weak, to help the oppressed, to promote the greeting of ‘As-Salamu Alaikum’, and to help those who swear to do something to keep their oaths.
Riyad as-Salihin 846, Book 6, The Book of Greetings, Hadith 3. 1 min read