Tang Sanzang and three other people went to the western sky to learn scriptures and encountered Fire Mountain. Bajie said, Let's just walk from where there is no fire. Tang Sanzang said, I just want to go to the place of the classics. Sha Wujing said, where there are scriptures, there is fire. What Sha Wujing means is that wherever there are scriptures, there is fire.
Where there is no fire, there is no scripture must be true if Sha Wujing's words are true.