Our piece would have formed part of a row of tiles, as the text is incomplete, reading:
‘…earth. Who is there…’
This forms part of the Ayat al-Kursi or ‘Throne Verse’ (255) from sura 2 (al-Baqarah) of the Qur’an. Completed, the two sentences should read: ‘His are all things in the heavens and on earth. Who is there can intercede in His presence except as He permitteth?’
What does it say?
Went back to check
https://www.mohtashemi.art/artworkDetail/781096/17919/calligraphic-tile