Quran 50:38 from Surah Qaaf on Divine Marvels.
وَلَقَدۡ خَلَقۡنَا ٱلسَّمَٰوَٰتِ وَٱلۡأَرۡضَ وَمَا بَيۡنَهُمَا فِي سِتَّةِ أَيَّامٖ وَمَا مَسَّنَا مِن لُّغُوبٖ
English translation: And certainly We created the heavens and the earth and whatever (is) between both of them in six periods and (did) not touch Us any fatigue
Transliteration: walaqad khalaqna al-samawati wal-arda wama baynahuma fi sittati ayyamin wama massana min lughubin