In Islamic law, the obligation of any command is founded upon three essential principles: the emergence of a cause (sabab), the realization of necessary conditions (sharṭ), and the removal of obstacles (maniʿ). A divine directive becomes binding only when its genuine cause materializes, the capacity for action exists, and all barriers in the way have been cleared.

These principles are not a product of legal technicalities or speculative reasoning. Rather, they stem from a self-evident demand of human intellect and nature—one upon which the entire practical structure of religion is based. The Shariʿah has grounded the formulation of its injunctions upon this very natural reality, and Islamic jurisprudence has shaped the nature of religious rulings in light of this rational principle.

Whenever reason analyzes a ruling, it instinctively raises three foundational questions: Is there a valid reason underlying this demand? Is it practically possible to act upon it? And is there any obstacle that renders its implementation impossible? These form the basis upon which human beings assess the rationality or irrationality of a religious or moral requirement and determine the scope of their personal responsibility. This is the very natural order upon which the foundation of moral accountability is established.

Islamic Shariʿah has structured its commands in harmony with this natural order of human reason. No religious obligation is declared binding without the manifestation of its reality; no action is deemed obligatory in the absence of capability; and no duty is imposed when obstacles persist. Whenever religion addresses human consciousness, it follows this natural method, organizing its calls and demands in accordance with the design of human reason.

Thus, when the religion issues a command, it either explicitly states the cause behind it or the nature of the command itself makes its rationale intuitively evident. Likewise, every religious obligation considers both the capacity for action and external obstacles so that no responsibility exceeds human strength or practical feasibility.

This principle is applied with full clarity in the case of jihad. The occurrence of oppression and injustice constitutes the foundational cause legitimizing jihad; the availability of necessary strength, resources, and collective leadership is an essential condition for its obligation; and the presence of widespread corruption or certain failure constitutes an obstacle that can nullify its obligation.

Accordingly, the obligation of jihad depends on the fulfillment of all these elements. Mere occurrence of injustice or aggression does not, in and of itself, make fighting obligatory—unless the capability for action is present and the path is clear of impediments.

“The mere presence of a cause does not necessitate the ruling until the conditions are fulfilled and the impediments are removed.”

— Imam al-Shaṭibi, Al-Muwafaqat, 2:10

Capability as a Condition

The second element is capability. In accordance with this foundational structure, the Qurʾan repeatedly emphasizes the necessity of capability in matters of fighting. At the time of Badr, urging the believers to engage in battle, God said:

“O Prophet, encourage the believers to fight. If there are twenty steadfast among you, they will overcome two hundred; and if there are a hundred, they will overcome a thousand of those who disbelieve.”

[Qurʾan, 8:65]

However, when the actual strength of the Muslims was taken into account, God announced a concession:

“Now God has lightened your burden, and He knows that there is weakness among you. So if there are a hundred steadfast among you, they will overcome two hundred; and if there are a thousand, they will overcome two thousand by God’s permission.”

[Qurʾan, 8:66]

Obstacles as a Factor

The third element is the presence of obstacles. This principle also applies to the potential outcomes of fighting. If the result of warfare would be the predominance of corruption or a foreseeable failure, this serves as a legal impediment, and under such circumstances the obligation of jihad is nullified.

“If jihad has become individually obligatory (ʿayni), but there is no overriding benefit in proceeding due to the predominance of corruption, then fighting is not obligatory—in fact, it may even become prohibited.”

— Imam Ibn Taymiyyah, Minhaj al-Sunnah al-Nabawiyyah, 4:314

This very principle is articulated by the Qurʾan as a general maxim:

“God does not burden any soul beyond its capacity.”

[Qurʾan, 2:286]

And in regard to preparation for fighting, it commands:

“And prepare against them whatever force you can muster.”

[Qurʾan, 8:60]

During the early period in Makkah, even as the believers endured oppression and violence, permission for fighting was not granted. Instead, they were instructed to remain steadfast in prayer and patience:

“Restrain your hands and establish prayer.”

[Qurʾan, 4:77]

Refuting a Misplaced Analogy

Some argue analogically from the allowance of tayammum in prayer that just as the absence of water does not lift the obligation of prayer, similarly, the lack of capability does not remove the obligation of fighting. But this analogy is flawed. Prayer is an individual obligation, and the absence of water has a designated substitute. In contrast, jihad is a collective duty contingent upon the overall strength of the community. If that capability is absent, the obligation is practically suspended.

This is precisely why the Qurʾan, under such circumstances, directed the believers toward patience, migration, and reconciliation, while emphasizing the importance of preparation—so that once the required capability is attained, the responsibility of fighting may be fulfilled. Thus, the decision to engage in warfare was not left to individuals or isolated groups, but was placed in the hands of collective leadership and state authority.

“O you who believe, obey God, obey the Messenger, and those in authority among you.”

[Qurʾan, 4:59]

“When there comes to them some matter touching public safety or fear, they spread it. If they had referred it to the Messenger and to those in authority among them, those among them who are able to draw conclusions would have understood it.”

[Qurʾan, 4:83]

These verses make clear that in delicate matters such as warfare, the authority to act must rest with those vested with legal and political responsibility, so that decisions are made with wisdom, deliberation, and consideration of the collective good.

Based on this very principle, the Shariʿah has conditioned the obligation of jihad with stringent requirements. Although oppression and aggression represent the objective and primary cause of its legitimacy, the obligation of fighting does not rest solely on the emergence of its cause. It requires the realization of capability, the removal of impediments, due consideration of circumstances, and the presence of overriding benefit.

Hence, the command of jihad addresses the collective community—not individuals—and in the modern era, this collective organization takes the form of the state. As a result, the decision to engage in warfare is not left to private persons or groups, but is the prerogative of collective leadership and the state apparatus. The assessment of capability and the decision to act also fall under their jurisdiction.

The Shariʿah has instituted this arrangement so that the ummah remains protected from chaos and ruin, and so that the religious system remains grounded in wisdom, justice, and balance. Therefore, any individual declaration of the obligation of jihad by scholars—based solely on personal judgment or fatwa—is a clear violation of the established legal framework. Such extra-legal actions in religious matters risk leading the ummah into greater division and disorder.