Al-Bara bin `Azib (May Allah be pleased with them) reported: Messenger of Allah (PBUH) has ordered us to visit the sick, to follow the funeral (of a dead believer), respond to the sneezer (i.e., by saying to him: Yarhamuk-Allah after he says: Al-hamdu lillah), to help those who vow to fulfill it, to help the oppressed, to accept the invitation extended by the inviter; and to promote greetings (i.e., saying As-Salamu `Alaikum).[Al-Bukhari and Muslim].
This Hadith has already been mentioned with slightly different wording. Here it has been repeated owing to its relevance to this chapter. See Hadith No. 847.