مُطِرْنَا بِفَضْلِ اللَّهِ وَرَحْمَتِهِ
Mutirna bifadlillahi wa rahmatihi
We have been given rain by the grace and mercy of Allah.
The Prophet ﷺ said that saying "We have been given rain by such-and-such star" is a form of disbelief, while saying "We have been given rain by the grace and mercy of Allah" is the way of a believer. Rain comes only from Allah, not from weather patterns or celestial bodies.
Related Du'as
اللَّهُمَّ اغْفِرْ لِي
O Allah, forgive me. (Du'a during rainfall is accepted.)
Hasanاللَّهُمَّ اجْعَلْهَا رَحْمَةً وَلَا تَجْعَلْهَا عَذَابًا
O Allah, make it a mercy and do not make it a punishment.
Hasanاللَّهُمَّ سُقْيَا رَحْمَةٍ وَلَا سُقْيَا عَذَابٍ وَلَا بَلَاءٍ وَلَا هَدْمٍ وَلَا غَرَقٍ
O Allah, let it be rain of mercy, not rain of punishment, nor calamity, nor destruction, nor flooding.
Hasanاللَّهُمَّ اسْقِ عِبَادَكَ وَبَهَائِمَكَ وَانْشُرْ رَحْمَتَكَ وَأَحْيِ بَلَدَكَ الْمَيِّتَ
O Allah, give water to Your servants and Your animals, spread Your mercy, and revive Your dead land.
Hasan