And [had you been present], you would see the sun when it (18:17)

﴿۞ وَتَرَى الشَّمْسَ إِذَا طَلَعَت تَّزَاوَرُ عَن كَهْفِهِمْ ذَاتَ الْيَمِينِ وَإِذَا غَرَبَت تَّقْرِضُهُمْ ذَاتَ الشِّمَالِ وَهُمْ فِي فَجْوَةٍ مِّنْهُ ۚ ذَٰلِكَ مِنْ آيَاتِ اللَّهِ ۗ مَن يَهْدِ اللَّهُ فَهُوَ الْمُهْتَدِ ۖ وَمَن يُضْلِلْ فَلَن تَجِدَ لَهُ وَلِيًّا مُّرْشِدًا﴾
[ الكهف: 17]

18:17 And [had you been present], you would see the sun when it rose, inclining away from their cave on the right, and when it set, passing away from them on the left, while they were [laying] within an open space thereof. That was from the signs of Allah. He whom Allah guides is the [rightly] guided, but he whom He leaves astray - never will you find for him a protecting guide.

They thus fulfilled the instruction and Allah put them to sleep and protected them from their enemy.
You - O one who looks at them - will see the sun when it rises from the east inclining away from their cave to the right of one entering it; and at the time of sunset it moves away from the cave towards the left but does not strike it directly.
They are therefore in perpetual shade unaffected by the heat of the sun.
They are in a wide space within the cave where the air they require reaches them.
The abovementioned occurrences viz.
their taking refuge in the cave, their being put to sleep, the sun’s deviation from them, the spaciousness in the cave and their salvation from their people are all wondrous acts of Allah that indicate His power.
Whoever Allah guides to the path of guidance, such a person is rightly guided in reality.
Whoever Allah forsakes and lets go astray, then you will never find anyone to help and guide him to the right path.
This is because guidance is in Allah’s Hands and not in his.

And you might have seen the sun, when it rose, declining to the right from their Cave, and when it set, turning away from them to the left, while they lay in the midst of the Cave. That is (one) of the Ayat (proofs, evidences, signs) of Allah. He whom Allah guides, is rightly guided; but he whom He sends astray, for him you will find no Wali (guiding friend) to lead him (to the right Path).

phonetic Transliteration

Watara alshshamsa itha talaAAat tazawaru AAan kahfihim thata alyameeni waitha gharabat taqriduhum thata alshshimali wahum fee fajwatin minhu thalika min ayati Allahi man yahdi Allahu fahuwa almuhtadi waman yudlil falan tajida lahu waliyyan murshidan

Abdullah Yusuf Ali - Translation

Thou wouldst have seen the sun, when it rose, declining to the right from their Cave, and when it set, turning away from them to the left, while they lay in the open space in the midst of the Cave. Such are among the Signs of Allah: He whom Allah, guides is rightly guided; but he whom Allah leaves to stray,- for him wilt thou find no protector to lead him to the Right Way.

Safi-ur-Rahman al-Mubarakpuri

And you might have seen the sun, when it rose, declining to the right from their cave, and when it set, turning away from them to the left, while they lay in the midst of the cave. That is from the Ayat of Allah. He whom Allah guides, he is the rightly-guided; but he whom He sends astray, for him you will find no guardian to lead him.

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