Quran 68:39 from Surah Al-Qalam on Divine Marvels.
أَمۡ لَكُمۡ أَيۡمَٰنٌ عَلَيۡنَا بَٰلِغَةٌ إِلَىٰ يَوۡمِ ٱلۡقِيَٰمَةِ إِنَّ لَكُمۡ لَمَا تَحۡكُمُونَ
English translation: Or (do) you have oaths from us reaching to (the) Day (of) the Resurrection That for you (is) what you judge
Transliteration: am lakum aymanun alayna balighatun ila yawmi al-qiyamati inna lakum lama tahkumuna