فلا يجوزُ أنْ يَسُنَّ رسولُ الله سنَّةً لازِمَةً فَتُنْسَخَ فلا يَسُنَّ ما نَسَخَها، وإنما يُعْرَفُ الناسِخُ بالآخِرِ مِن الأمْرَيْن، ص222 وأكثَرُ الناسخ في كتاب الله إنما عُرِفَ بِدِلالة سُنَنِ رسولِ الله. فإذا كانت السنة تدلُّ على ناسِخِ القُرَآن، وتُفَرِّقُ بَيْنَهُ وبَيْنَ منسوخِهِ لم يَكُنْ أن تُنْسَخَ السنَّةُ بِقُرَآن إلا أحْدَثَ رسولُ الله مَعَ القُرَآن سنَّةً تَنْسَخُ سنَّتَهُ الأُولَى، لِتَذْهَبَ الشُّبْهةُ عَنْ مَن أقامَ اللهُ عليه الحُجَّةَ مِن خَلْقه
It is not permissible for God’s Emissary to establish a binding practice that is then abrogated without establishing another that abrogates it. One comes to know which abrogates the other by whether it is the later of the two. Most abrogating passages in the Book of God are known only from indications in accounts of the practices of God’s Emissary. Since Prophetic Practice indicates abrogating passages in the Qurʾan and distinguishes between those and what is abrogated, a Prophetic practice could not properly be abrogated by a passage from the Qurʾan unless God’s Emissary instituted a new practice that abrogated his original practice, so that those among God’s creatures for whom He has provided binding authority would not become confused