﴿وَمَا لَنَا لَا نُؤْمِنُ بِاللَّهِ﴾
What reason have we not to believe in Allah? (Al-Māʾidah 5:84)
The expression lā nuʾminu is a negative imperfect that can be understood in a circumstantial relation to the preceding construction. It has no separate introducing wāw al-ḥāl. The wāw at the beginning of the quotation belongs to the larger discourse connection; treating it as a wāw immediately introducing lā nuʾminu confuses two grammatical levels.