رَبِّ إِنِّي أَعُوْذُ بِكَ أَنْ أَسْأَلَكَ مَا لَيْسَ لِي بِهِ عِلْمٌ ۖ وَإِلَّا تَغْفِرْ لِي وَتَرْحَمْنِي أَكُن مِّنَ الْخَاسِرِينَ

Rabbi innee a'oozu bika an as'alaka maa laisa lee bihee 'ilm; wa illaa taghfir lee wa tarhamneee akum-minal-khaasireen.

My Lord, I seek refuge in You from asking that of which I have no knowledge. And unless You forgive me and have mercy upon me, I will be among the losers.

Reference: Surah Hud 11:47