Allah says: divorce is twice, then either keep her with kindness or release her with good treatment (2:229). Divorce is allowed but disliked, and a last resort. It should be given once, in a state of purity, without intercourse in that period, and then the waiting period (iddah) follows (65:1). A woman may also seek a khul', as the wife of Thabit ibn Qays did in the time of the Prophet ﷺ.
1The way of the Sunnah
A single divorce in a period of purity, without intercourse, then waiting until the end of the iddah.
During the iddah the husband may take her back, and the wife stays in the home (65:1).
After the iddah ends the divorce is final, and they can marry again by a new contract.
A third divorce makes her unlawful for him until she marries another man in a real marriage (2:230).
2The waiting period (iddah)
Three periods for a woman who still has her cycle (2:228).
Three months for those who no longer menstruate or have not yet begun (65:4).
Until delivery for a pregnant woman.
Four months and ten days for a widow (2:234).
3Khul'
When the wife dislikes the marriage and fears she cannot fulfil her duties, she may return what she was given and the marriage is ended.
The Prophet ﷺ told Thabit ibn Qays to accept the garden and divorce her. It ends the marriage with one divorce.
Where the schools differ
The four Sunni schools agree on the main ruling above and differ in these points. No school is preferred here.
Three divorces in one word. the majority of the schools count them as three, and some scholars (like Ibn Taymiyyah) hold it counts as one. Ask a scholar.
Khul'. the Hanafi, Maliki and Shafi'i schools count it as a final divorce. The Hanbali school, in the well-known narration, treats it as an annulment (faskh) and not a divorce, with a waiting period of one cycle.
Note
Divorce has important legal effects. Ask a qualified scholar and follow the law of your country for the legal side.
Boşanma iki defadır. Ya iyilikle tutma ya da iyilik yaparak bırakmadır. İkisi Allah'ın yasalarını koruyamamaktan korkmadıkça kadınlara verdiklerinizden (mehirden) bir şey almanız size helal değildir. Eğer Allah'ın yasalarını ikisi koruyamıyacaklar diye korkarsanız, o zaman kadının fidye vermesinde (mehrinden vazgeçerse) ikisine de günah yoktur. Bunlar Allah'ın yasalarıdır, onları bozmayın. Allah'ın yasalarını bozanlar ancak zalimlerdir.
Ey Peygamber! Kadınları boşayacağınızda, onları, iddetlerini gözeterek boşayın ve iddeti sayın; Rabbiniz olan Allah'tan sakının; onları, apaçık bir hayasızlık yapmaları hali bir yana evlerinden çıkarmayın, onlar da çıkmasınlar. Bunlar, Allah'ın sınırlarıdır. Allah'ın sınırlarını kim aşarsa, şüphesiz, kendine yazık etmiş olur. Bilmezsin, olur ki, Allah bunun ardından bir hal meydana getirir.
Boşanan kadınlar, kendi kendilerine üç aybaşı hali beklerler, eğer Allah'a ve ahiret gününe inanmışlarsa, rahimlerinde Allah'ın yarattığını gizlemeleri kendilerine helal değildir. Kocaları bu arada barışmak isterlerse, karılarını geri almakta daha çok hak sahibidirler. Kadınların hakları, örfe uygun bir şekilde vazifelerine denktir. Erkeklerin onlardan bir üstün derecesi vardır. Allah güçlüdür. Hakim'dir.
From the Sunnah
Sahih al-Bukhari 5273Authentic collection
The point of the hadith: The wife of Thabit ibn Qays came to the Prophet ﷺ because she disliked staying married. He had her return the garden she was given, and told Thabit to accept it and divorce her.
Read the Arabic text
حَدَّثَنَا أَزْهَرُ بْنُ جَمِيلٍ، حَدَّثَنَا عَبْدُ الْوَهَّابِ الثَّقَفِيُّ، حَدَّثَنَا خَالِدٌ، عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ،. أَنَّ امْرَأَةَ، ثَابِتِ بْنِ قَيْسٍ أَتَتِ النَّبِيَّ صلى الله عليه وسلم فَقَالَتْ يَا رَسُولَ اللَّهِ ثَابِتُ بْنُ قَيْسٍ مَا أَعْتُبُ عَلَيْهِ فِي خُلُقٍ وَلاَ دِينٍ، وَلَكِنِّي أَكْرَهُ الْكُفْرَ فِي الإِسْلاَمِ. فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " أَتَرُدِّينَ عَلَيْهِ حَدِيقَتَهُ ". قَالَتْ نَعَمْ. قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " اقْبَلِ الْحَدِيقَةَ وَطَلِّقْهَا تَطْلِيقَةً ". قَالَ أَبُو عَبْد اللَّهِ لَا يُتَابَعُ فِيهِ عَنْ ابْنِ عَبَّاسٍ
This is general information, not a fatwa. For your own situation, ask a qualified scholar.
Fiqh questions
Divorce and khul'
Allah says: divorce is twice, then either keep her with kindness or release her with good treatment (2:229). Divorce is allowed but disliked, and a last resort. It should be given once, in a state of purity, without intercourse in that period, and then the waiting period (iddah) follows (65:1). A woman may also seek a khul', as the wife of Thabit ibn Qays did in the time of the Prophet ﷺ.
Is this a fatwa?
No. It is a summary of well-known rulings with their evidence. For your own case, ask a qualified scholar.
What if my school differs from this answer?
Follow the view of the school you follow and the scholar who teaches you. The page lists the differences of the four schools.