Ash-Shura - 42:28

وَهُوَ الَّذِي يُنَزِّلُ الْغَيْثَ مِن بَعْدِ مَا قَنَطُوا وَيَنشُرُ رَحْمَتَهُ وَهُوَ الْوَلِيُّ الْحَمِيدُ
[42:28]
And He it is Who sends down the rain after they have despaired, and He unfolds His mercy; and He is the Guardian, the Praised One.
He is the One that sends down rain (even) after (men) have given up all hope, and scatters His Mercy (far and wide). And He is the Protector, Worthy of all Praise.
And He it is Who sendeth down the saving rain after they have despaired, and spreadeth out His mercy. He is the Protecting Friend, the Praiseworthy.