In Islam, marriage is described as a source of tranquillity, not simply a social or legal arrangement. In Surah Ar-Rum, chapter thirty, verse twenty-one, an English translation of the meaning reads: “And of His signs is that He created for you from yourselves mates that you may find tranquillity in them; and He placed between you affection and mercy”. This page is a general introduction, not a substitute for pre-marital counselling, or for scholarly guidance on a specific situation.

Beyond its practical and social functions, marriage is presented in the Qur'an as a means of finding rest and companionship, built on affection and mercy between spouses. It is also the setting in which many other responsibilities, such as raising children, building a stable household, and supporting one another, become possible. Marriage is encouraged in Islam.

The Qur'an commands kind treatment between spouses directly, including through difficult periods. In Surah An-Nisa, chapter four, verse nineteen: “And live with them in kindness. For if you dislike them — perhaps you dislike a thing and Allah makes therein much good”. That kindness is not conditional on things always going smoothly.

Classical law describes specific mutual rights and responsibilities in more detail than a general introduction can responsibly summarise. Among them are a husband's financial responsibility for the household, within his means; a wife's right to the mahr, a gift given to her at marriage, which is hers to keep; and both spouses' right to kind treatment, honesty, and support. Questions with financial or legal weight are worth raising with a qualified scholar. And the Prophet's own example is the standard: “The best of you is the best to his wives, and I am the best of you to my wives”, in Sunan at-Tirmidhi, graded authentic by al-Albani.

Disagreement is treated as a normal part of marriage, to be worked through, not a sign that it has failed. For serious disagreements the couple cannot resolve alone, the Qur'an sets out a process, in chapter four, verse thirty-five: “And if you fear dissension between the two, send an arbitrator from his people and an arbitrator from her people. If they both desire reconciliation, Allah will cause it between them”.

In practice, many disagreements are resolved well before that, through ordinary good habits: talking directly rather than assuming, raising a specific grievance rather than letting it build up, and approaching a disagreement as two people solving a shared problem, rather than as opponents. And where a couple genuinely cannot resolve something, involving a trusted, discreet third party, such as a respected family member, a counsellor or a scholar, earlier rather than later tends to help.