1. Definition of Istihalah

Istihalah (استحالة) is an Islamic legal term that refers to the complete transformation of a substance from one state to another, altering its inherent nature (tabi'ah) such that its original ruling in Shariah no longer applies.

For example, if an impure (najis) or haram substance undergoes a chemical or natural change and becomes a different substance with new properties, it may be considered pure (tahir) and permissible (halal) under Islamic law.

2. Prerequisites and Conditions for Istihalah

For Istihalah to be valid in Islamic jurisprudence, certain conditions must be met:

1. Complete Transformation: The substance must undergo a fundamental change in its composition, not merely a superficial alteration.

2. Irreversibility: The change must be permanent and irreversible under normal conditions.

3. Natural or Chemical Process: The transformation must occur through a natural or industrial process, not just dilution or mixing.

4. Change in Legal Status: The new substance must no longer carry the initial ruling of impurity or prohibition.

3. Examples of Istihalah in Fiqh

Several cases illustrate Istihalah in Islamic jurisprudence:

1. Conversion of Wine into Vinegar:
2. Transformation of Impure Substances into Fertilizer or Soap:
3. Chemical Conversion of Alcohol into Other Compounds:
4. Conversion of Blood into Plant Nutrients:

4. Religious Status of Istihalah in Islamic Fiqh

Scholars have differing opinions on Istihalah:

A. Majority View (Hanafi, Maliki, Shafi'i, and Hanbali Schools)

• Some argue that certain impure substances (e.g., pork, alcohol) cannot become pure under any circumstances.
• Evidence: They rely on strict interpretations of texts prohibiting najasah.

C. Modern Applications

• Islamic regulatory bodies (e.g., Islamic Fiqh Academy, JAKIM) often permit products derived from Istihalah.
• Conditions: The process must ensure no remaining impurities, and the end product must not be harmful.

5. Conclusion

Istihalah is a recognized concept in Islamic jurisprudence that allows impure or haram substances to become permissible if they undergo a complete and irreversible transformation. While the majority of scholars accept it under strict conditions, some maintain stricter views. Muslims should consult reliable scholars and halal certification bodies when in doubt about modern applications of Istihalah.

References

• Quran 5:3, 2:173
• Hadith in Sahih Muslim (vinegar)
• Islamic Fiqh Academy resolutions
• Classical fiqh texts (e.g., Al-Majmu’ by Imam Nawawi)

This article provides a comprehensive overview of Istihalah, its conditions, examples, and scholarly perspectives to help Muslims understand its role in halal and haram rulings.