Surah Al-Qamar, ayah 11

فَفَتَحۡنَآ أَبۡوَٰبَ ٱلسَّمَآءِ بِمَآءٖ مُّنۡهَمِرٖ ١١

Fafatahnā abwābas-samā'i bimā'im munhamir

Then We opened the gates of the heaven with rain pouring down