"The Messenger of Allah commanded us to do seven things: He commanded us to attend funerals, visit the sick, to reply (say: Yarhamuk Allah ) to one who sneezes, to accept invitations, to support the oppressed, to fulfill oaths (when adjured by another) and to return greetings of Salaam."
Sunan an-Nasa'i Book 35, Hadith 18
← Previous Hadith "I swore by Al-Lat and Al-'Uzza and my companions said to me: 'What a bad thing you have said! You have said something horrible.' So I went to the Messenger of Allah and told him about that. He said: 'Say: La ilaha illallah wahdahu la sharika lah, lahul-mulk wa lahul-hamd wa huwa 'ala kulli shay'in qadir (There is none worthy of worship except Allah with no partner or associate; His is the Dominion, to Him be all praise, and He is able to do all things). Spit to your left three times, seek refuge with Allah from the Shaitan, and do not say that again.'"

Sunan an-Nasa'i Book 35, Hadith 17 Next Hadith → "There is nothing on Earth that I swear an oath upon, and I see that something else is better, but I do that which is better."

Sunan an-Nasa'i Book 35, Hadith 19