Tafsir Ibn Abbas: As-Saaffaat, Ayah 6

We have indeed adorned the lowest heaven with an adornment the stars that is to say adorned with their light or with them the stars the genitive annexation bi-zīnati’l-kawākib is for explication; similarly explicative is the reading of bi-zīnatin ‘with an adornment’ with nunation the adornment explained as being ‘the stars’;