His truth, and they did not have a strong suspicion in the form of proof, so they used to include it in the meaning of his saying, and whoever calls upon another god with God has no proof of it. He means proof here in the claim of the observer, for it is impossible for there to be then evidence in the same matter for another god, and all that remains is If the suspicion appears in the form of proof, then it is believed to be proof and it is not more powerful than this.