"And We have protected it from every devil expelled [from the mercy of Allah]," meaning: accursed, whom Allah has pelted with curses; according to the tafsir of al-Hasan.
﴿وَحَفِظْنَاهَا مِنْ كُلِّ شَيْطَانٍ رَجِيمٍ﴾ مَلْعُونٍ رَجَمَهُ اللَّهُ بِاللَّعْنَةِ؛ فِي تَفْسِير الْحسن