Chapter 35: The Book of Oaths and Vows

Al-Bara' bin 'Azib said: "The Messenger of Allah commanded us to do seven things: He commanded us to attend funerals, visit the sick, to reply (say: Yarhamuk Allah [may Allah have mercy on you]) 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 3778
Chapters
1 The Book of Purification 2 The Book of Water 3 The Book of Menstruation and Istihadah 4 The Book of Ghusl and Tayammum 5 The Book of Salah 6 The Book of the Times (of Prayer) 7 The Book of the Adhan (The Call to Prayer) 8 The Book of the Masjids 9 The Book of the Qiblah 10 The Book of Leading the Prayer (Al-Imamah) 11 The Book of the Commencement of the Prayer 12 The Book of The At-Tatbiq (Clasping One's Hands Together) 13 The Book of Forgetfulness (In Prayer) 14 The Book of Jumu'ah (Friday Prayer) 15 The Book of Shortening the Prayer When Traveling 16 The Book of Eclipses 17 The Book of Praying for Rain (Al-Istisqa') 18 The Book of the Fear Prayer 19 The Book of the Prayer for the Two 'Eids 20 The Book of Qiyam Al-Lail (The Night Prayer) and Voluntary Prayers During the Day 21 The Book of Funerals 22 The Book of Fasting 23 The Book of Zakah 24 The Book of Hajj 25 The Book of Jihad 26 The Book of Marriage 27 The Book of Divorce 28 The Book of Horses, Races and Shooting 29 The Book of Endowments 30 The Book of Wills 31 The Book of Presents 32 The Book of Gifts 33 The Book of ar-Ruqba 34 The Book of 'Umra 35 The Book of Oaths and Vows 36 The Book of the Kind Treatment of Women 37 The Book of Fighting [The Prohibition of Bloodshed] 38 The Book of Distribution of Al-Fay' 39 The Book of al-Bay'ah 40 The Book of al-'Aqiqah 41 The Book of al-Fara' and al-'Atirah 42 The Book of Hunting and Slaughtering 43 The Book of ad-Dahaya (Sacrifices) 44 The Book of Financial Transactions 45 The Book of Oaths (qasamah), Retaliation and Blood Money 46 The Book of Cutting off the Hand of the Thief 47 The Book Of Faith and its Signs 48 The Book of Adornment 49 The Book of the Etiquette of Judges 50 The Book of Seeking Refuge with Allah 51 The Book of Drinks