1 verse has
ثَلَٰثِ
in Edition Uthmani / Al-Mursalaat (The Emissaries)

30:77ٱنطَلِقُوٓا۟ إِلَىٰ ظِلٍّۢ ذِى ثَلَٰثِ شُعَبٍۢ