لَيْسَ لَهَا مِن دُونِ اللَّهِ كَاشِفَةٌ
“Of it, [from those] besides Allah, there is no remover.”
This ayah is part of Surah al-Najm, which the Prophet ﷺ recited in full at this event -- building to the prostration verse (53:62) that moved even the Quraysh to fall into sajdah with the Muslims.