From The Killer Mistake by Shaykh Abu Hasan: 'Muĥammad ibn Saĥnūn said: ‘Anyone who doubts a single letter that Sayyidunā Muĥammad ﷺ has brought from Allāh ta’álā, is an obstinate kāfir.’ And he said: ‘The punishment for whoever belies the Prophet ﷺ, according to [the agreement of] our nation is that he shall be executed.’ Saĥnūn’s student Aĥmad ibn Abī Sulaymān said: ‘Whoever says that the Prophet ﷺ was black shall be executed because the Prophet ﷺ did not have a dark complexion.’
