Plosive (stopped)

The mechanic

The articulators close completely so the sound itself stops dead and cannot be drawn out. Eight letters, gathered as أَجِدْ قَطٍ بَكَتْ: ء ج د ق ط ب ك ت.

Where it occurs

The eight shidda letters

ء ج د ق ط ب ك ت

A place in the text

شَاكِرٗا لِّأَنۡعُمِهِۚ ٱجۡتَبَىٰهُ وَهَدَىٰهُ إِلَىٰ صِرَٰطٖ مُّسۡتَقِيمٖ

The marked spot was located in this ayah's own text at build time — An-Nahl 16:121.