Surah Hud 11:7

وَهُوَ ٱلَّذِى خَلَقَ ٱلسَّمَـٰوَٰتِ وَٱلْأَرْضَ فِى سِتَّةِ أَيَّامٍ وَكَانَ عَرْشُهُۥ عَلَى ٱلْمَآءِ لِيَبْلُوَكُمْ أَيُّكُمْ أَحْسَنُ عَمَلًا ۗ وَلَئِن قُلْتَ إِنَّكُم مَّبْعُوثُونَ مِنۢ بَعْدِ ٱلْمَوْتِ لَيَقُولَنَّ ٱلَّذِينَ كَفَرُوٓا۟ إِنْ هَـٰذَآ إِلَّا سِحْرٌ مُّبِينٌ

And it is He who created the heavens and the earth in six days - and His Throne had been upon water - that He might test you as to which of you is best in deed. But if you say, "Indeed, you are resurrected after death," those who disbelieve will surely say, "This is not but obvious magic."

Translation: Saheeh International

Tafsir

And He it is Who created the heavens and the earth in six days the first of which was Sunday and the last Friday — and His Throne before creating them was upon the water borne by the winds — that He might try you li-yabluwakum is semantically connected to khalaqa ‘He Who created’ in other words He created them and all …

Excerpt from Tafsir al-Jalalayn, commentary on 11:7, via Quran.com. The reader has the full commentary and 9 more tafsirs.