Chapter on Hunting and Slaughtering
Man Lā Yaḥḍuruh al-Faqīh|Volume 3|Book 2|Chapter 36
وَ رُوِيَ: "أَنَّ اَلْمُسُوخَ لَمْ تَبْقَ أَكْثَرَ مِنْ ثَلاَثَةِ أَيَّامٍ فَإِنَّ هَذِهِ مُثِّلَ بِهَا فَنَهَى اَللَّهُ عَزَّ وَ جَلَّ عَنْ أَكْلِهَا".
And it has been narrated: "The mutated creatures (al-masukh) did not remain alive for more than three days. These were transformed as a lesson, and Allah سبحانه وتعالى, the Almighty and Majestic, forbade eating them."
- Ṣaḥīḥ al-Faqīh