Word by Word Analysis

وَقَالُوا۟ مَهْمَا تَأْتِنَا بِهِۦ مِنْ ءَايَةٍ لِّتَسْحَرَنَا بِهَا فَمَا نَحْنُ لَكَ بِمُؤْمِنِينَ 132

And they said, "No matter what sign you bring us with which to bewitch us, we will not be believers in you."