Sūrah Al-Fatḥ The Victory

الفتح

Al-Qurṭubī derives the binding nature of bay'ah (pledge of allegiance) to the Muslim leader from the bay'at al-riḍwān event, and maps school positions on when the pledge obligates and when it may be withdrawn.

DetailInformationClassificationSignificance

SurahAl-FatḥMedinanVictory, treaty, and political allegiance

Key Fiqh IssueBay'ah pledge of allegiance to the Muslim leader and its binding natureWājib to give / sinful to breakCore Islamic political obligation

School ComparisonḤanafī: bay'ah binds both parties; Mālikī: obligatory once given for duration of legitimate rule; Shāfiʿī: ahl al-ḥall wa-l-ʿaqd bay'ah sufficient; Ḥanbalī: bay'ah to legitimate imam is obligatory; rebellion is ḥarāmWājibPolitical obligation with serious consequences for violation

Uṣūl PrincipleʿAqd al-imāmah the contract of political leadershipBinding contractCreates mutual obligations between ruler and ruled

Al-Qurṭubī derives from verse 10 "those who pledge allegiance to you pledge allegiance to Allah" that the bay'ah to the Prophet (and by extension to legitimate Muslim leaders) is a binding contract with divine-level significance. He establishes that breaking the bay'ah without legitimate cause is a major sin, while the leader's side has corresponding obligations (justice, Islamic governance, protection of the community).

The schools agree that bay'ah once given binds the giver; they differ on implementation. The Shāfiʿī position that ahl al-ḥall wa-l-ʿaqd (the scholars and leaders who constitute and dissolve governance) can give bay'ah on behalf of the community is the most institutional approach. The Ḥanbalī school is strongest on prohibiting rebellion against the legitimate imam even when he is unjust endurance of injustice is preferred to fitna (civil strife). Al-Qurṭubī derives from the Ḥudaybiyah context that treaty-making (muwādaʿah) is also a binding legal act with conditions for validity.

إِنَّ الَّذِينَ يُبَايِعُونَكَ إِنَّمَا يُبَايِعُونَ اللَّهَ Inna lladhīna yubāyiʿūnaka innamā yubāyiʿūna llāha Meaning: "Those who pledge allegiance to you are pledging allegiance to Allah" Al-Qurṭubī: the pledge to the legitimate Muslim leader is elevated to a pledge with Allah; breaking it is not merely a political breach but a violation of a divine contract; hand-placing in the bay'ah is a symbol of this divine-human contract.

فَمَن نَّكَثَ فَإِنَّمَا يَنكُثُ عَلَىٰ نَفْسِهِ Fa-man nakatha fa-innamā yankuthu ʿalā nafsihi Meaning: "Whoever breaks [the pledge] only breaks it against himself" Al-Qurṭubī: the harm of breaking bay'ah falls on the breaker; this supports the Ḥanbalī position that rebellion against the imam harms the rebel more than the leader the community's cohesion is the true casualty.

Bay'ah to the legitimate Muslim leader is a binding contract breaking it is a major sin by consensus across all four schools.
Ahl al-ḥall wa-l-ʿaqd (governing scholars/leaders) can give bay'ah on behalf of the community this Shāfiʿī position institutionalizes the pledge.
Ḥanbalī school: rebellion against an unjust but legitimate imam is ḥarām endure injustice; seek change through legitimate means.
Treaty-making (muwādaʿah) with non-Muslim powers is legally valid and binding the Ḥudaybiyah precedent establishes this despite appearances.
Al-Qurṭubī derives that the divine elevation of bay'ah (pledge to Allah) implies full legal accountability for political covenant-breaking.

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