And [even] if We opened to them a gate from the heaven and they continued therein to ascend,
The Saheeh International Quran Translation
وَلَوْ فَتَحْنَا عَلَيْهِم بَابًا مِّنَ ٱلسَّمَآءِ فَظَلُّوا۟ فِيهِ يَعْرُجُونَAnd [even] if We opened to them a gate from the heaven and they continued therein to ascend,