Sura al-Naml 27:44

قِيلَ لَهَا ٱدْخُلِى ٱلصَّرْحَ فَلَمَّا رَأَتْهُ حَسِبَتْهُ لُجَّةً وَكَشَفَتْ عَن سَاقَيْهَا قَالَ إِنَّهُۥ صَرْحٌ مُّمَرَّدٌ مِّن قَوَارِيرَ قَالَتْ رَبِّ إِنِّى ظَلَمْتُ نَفْسِى وَأَسْلَمْتُ مَعَ سُلَيْمَٰنَ لِلَّـهِ رَبِّ ٱلْعَٰلَمِينَ

qīla lahā adkhulī l-ṣarḥa fa-lammā raathu ḥasibathu lujjatan wa-kashafat ʿan sāqayhā qalā innahu ṣarḥun mumarradun min qawārīra qālat rabbi innī ẓalamtu nafsī wa-aslamtu maʿa sulaymāna lillāhi rabbi l-ʿālamīna

She was asked to enter the lofty Palace: but when she saw it, she thought it was a lake of water, and she (tucked up her skirts), uncovering her legs. He said: "This is but a palace paved smooth with slabs of glass." She said: "O my Lord! I have indeed wronged my soul: I do (now) submit (in Islam), with Solomon, to the Lord of the Worlds."