Who constructed a wall between the people and Gog and Magog?
من الذي بنى السد بين القوم ويأجوج ومأجوج؟
Dhul Qarnain was a righteous and powerful king who traveled across the world. When he reached a place between two mountains, he encountered a people who could hardly understand a word. They pleaded for his help against the corruption of Gog and Magog, offering him a tribute. He refused the payment, relying instead on Allah's provision, and asked them to assist him with physical labor to build the barrier.
ذو القرنين ملك صالح مكن الله له في الأرض وآتاه من كل شيء سببًا. في رحلته نحو المشرق، وجد قومًا يستغيثون من فساد يأجوج ومأجوج، وعرضوا عليه مالاً ليبني لهم سدًا. وبنفس عفيفة، قال: "ما مكني فيه ربي خير"، وطلب منهم إعانته بالقوة والمواد لبناء الردم العظيم الذي لم يستطع المفسدون نقبه أو تسلقه.
Quranic Evidence | الدليل من القرآن الكريم
(They pleaded, "O Zul-Qarnain! Surely Gog and Magog are spreading corruption throughout the land. Should we pay you tribute, provided that you build a wall between us and them?" He responded, "What my Lord has provided for me is far better. But assist me with resources, and I will build a barrier between you and them.")
(قَالُوا يَا ذَا الْقَرْنَيْنِ إِنَّ يَأْجُوجَ وَمَأْجُوجَ مُفْسِدُونَ فِي الْأَرْضِ فَهَلْ نَجْعَلُ لَكَ خَرْجًا عَلَىٰ أَن تَجْعَلَ بَيْنَنَا وَبَيْنَهُمْ سَدًّا * قَالَ مَا مَكَّنِّي فِيهِ رَبِّي خَيْرٌ فَأَعِينُونِي بِقُوَّةٍ أَجْعَلْ بَيْنَكُمْ وَبَيْنَهُمْ رَدْمًا)
[سورة الكهف: الآيات ٩٤-٩٥]