Surah Al-Hijr, Verse 14

وَلَوۡ فَتَحۡنَا عَلَيۡهِم بَابٗا مِّنَ ٱلسَّمَآءِ فَظَلُّواْ فِيهِ يَعۡرُجُونَ١٤

walaw fataḥnā ʿalayhim bāban mina l-samāi faẓallū fīhi yaʿrujūna

And [even] if We opened to them a gate from the heaven and they continued therein to ascend,