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Is leather tanned via modern methods still considered pure?

The question of whether leather tanned using modern methods is considered pure has roots in both Qur'anic injunctions and hadith. The Qur'an states, Thy raiment purify, indicating the importance of cleanliness in what one wears 74:4. This verse underscores the need for purity in all aspects of life, including clothing and items made from animal hides.

From the perspective of hadith, the Prophet Muhammad ﷺ taught that When the hide is tanned, it is purified Sahih Muslim 3:133SunniSAHIH. This principle has been widely accepted by scholars, indicating that any hide, when properly tanned, becomes pure. In various narrations, the Prophet further emphasized this, stating, Any tanned leather is purified Sunan al-Tirmidhi 24:9SunniSahih (per Al-Albani) and Once the skin has been tanned, it is purified Sunan Abu Dawud 34:104SunniSahih (per Al-Albani).

Ibn Kathir also notes that the process of tanning transforms the hide's state, making it permissible to use (though he focuses on traditional methods). Based on these teachings, scholars generally agree that modern tanning methods, which follow the same basic principles of removing impurities and preserving the hide, would also render the leather pure.

Thus, leather tanned through modern methods that adhere to the principles of purification established in the Qur'an and Sunnah is typically considered pure, as the essence of purification remains intact.

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