[None] shall remove it besides Allah" as if the meaning is: it has no event-disclosing occurrence, and Allah knows best. "Do you then wonder at this discourse?"
﴿لَيْسَ لَهَا مِنْ دُونِ اللَّهِ كاشفة﴾ كَأَن الْمَعْنى: لَيْسَ لَهَا وقعةٌ كاشفةٌ، وَالله أعلم ﴿أَفَمِنْ هَذَا الحَدِيث تعْجبُونَ﴾