Holy Qur’an 18:97

‘Bring me blocks of iron.’ They did so till, when he had levelled up the space between the two mountain sides, he said, ‘Now blow with your bellows.’ They blew till, when he had made it red as fire, he said, ‘Bring me molten copper that I may pour it thereon.’

Translation: Maulawi Sher Ali (Ahmadiyya Muslim Jamaat)

Surah 18: Al-Kahf