Surah Hud — Ayah 47 (11:47)
قَالَ رَبِّ إِنِّيٓ أَعُوذُ بِكَ أَنۡ أَسۡـَٔلَكَ مَا لَيۡسَ لِي بِهِۦ عِلۡمٞۖ وَإِلَّا تَغۡفِرۡ لِي وَتَرۡحَمۡنِيٓ أَكُن مِّنَ ٱلۡخَٰسِرِينَ ٤٧
English translation (Saheeh International)
[Noah] said, "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."
Brief commentary
Noah (peace be upon him) asked his Lord to help him by preventing him from asking Him for what he had no knowledge about. He said that if Allah did not forgive him his sin, and have mercy on him, then he would be among the losers who lost their share in the Afterlife.