How can the Qur'an's description in Surat Al-Kahf of the sun setting in a spring of dark mud be reconciled with the astronomical facts that modern science has reached?

The Quran is the word of Allah, the Creator, the Knower of all things, and doubt in it is disbelief (kufr). A Muslim must supplicate to Allah and strive to seek knowledge from well-established scholars to understand difficult verses. He must refrain from delving into the meanings of the Quran without the proper means. A scientific fact cannot contradict the Quran and Sunnah (definition), and the sphericity of the Earth is an agreed-upon matter. The verse mentioned describes the state of the sun from the perspective of the observer, not its reality, so there is no contradiction between it and scientific facts.