وقال أحمد بن ابي سليمان صاحب سحنون من قال إن النبي ﷺ أسود قتل لم يكن النبي ﷺ بأسود وقال نحوه أبو عثمان الحداد قال لو قال إنه مات قبل أن يلتحي أو أنه كان بتاهرت ولم يكن بتهامة قتل لأن هذا نفْيٌ
الشفا للقاضي عياض اليحصبي القسم الرابع في تصرف وجوه الأحكام فيمن تنقّصه أو سبّه عليه الصلاة والسلام
Ahmad ibn Abi Sulaiman, the companion of Sahnun, said: Whoever says that the Prophet (SAW) was black is to be killed; the Prophet (SAW) was not black. Abu ‘Uthman Al-Haddad said something similar; he said: If anyone says that He died before his beard grew out, or that He was in Tahert, and was not in Tihama, he is to be killed, because this is denying the truth.
Al-qadi ‘Iyad Al-Yahsubi, Al-shifa bi Ta'rif Huquq Al-Mustafa [The Book of Healing by Making Known the Rights of the Chosen One], Part Four: regarding disposition of the aspects of legal rulings for those who slander Him or insult Him (prayers and peace be upon him)