Alqamah (may Allah have mercy on him) said: Sayyiduna Ali (may Allah be pleased with him) did not accept the testimony of an uncircumcised man.
Hamzah al-Jazari was abandoned (by the scholars); it is not permissible to use his report as proof.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الأشربة والحد فيها / 17572