Embracing-stop mark

The mechanic

Three dots printed twice, a few words apart (U+06DB), marking two candidate stops that belong to one another: the reciter stops at one of the pair, not at both.

Where it occurs

The mark as the mushaf prints it

• ۛU+06DB

A place in the text

ذَٰلِكَ ٱلۡكِتَٰبُ لَا رَيۡبَۛ فِيهِۛ هُدٗى لِّلۡمُتَّقِينَ

The marked spot was located in this ayah's own text at build time — Al-Baqarah 2:2.