1 verse has
وَأَمْطَرْنَا
in Edition Uthmani / Ash-Shu'araa (The Poets)

173:26وَأَمْطَرْنَا عَلَيْهِم مَّطَرًۭا ۖ فَسَآءَ مَطَرُ ٱلْمُنذَرِينَ