The two rivals traded reciprocal accusations Christians were associators and Muslims mutilators of God.

Evidence

Again we respond to them: “Since you say the Christ is Word and Spirit of God, how do you scold us as associators? For the Word and the Spirit are inseparable each from the one in whom this has the origin; if, therefore, the Word is in God it is obvious that he is God as well. If, on the other hand, this is outside of God, then God, according to you, is without word and without spirit. Thus, trying to avoid making associates to God you have mutilated Him… . Therefore, by accusing us falsely, you call us associators; we, however, call you mutilators (ó ) of God.” — John V. Tolan, Saracens, 352

Categorization

• DEFINE: Explains the medieval Christian accusation that Muslims ‘mutilate’ God by denying the Word and Spirit.
• ADDENDUM: Supports the ‘Complaints About Immodesty’ / identity-signaling articles’ interest in how medieval polemics weaponize paired religious accusations.