O Allah, shower upon us abundant rain, beneficial not harmful, swiftly and not delayed.
Reference:Abu Dawud 1/303. See also Al-Albani SahihAbu Dawud 1/216.Hisnul Muslim 169
اللّهُمَّ اسْقِـنا غَيْـثاً مُغيـثاً مَريئاً مُريـعاً نافِعـاً غَيْـرَ ضار عاجِـلاً غَـيْرَ آجِل
Allāhumma ‘asqinā ghaythan mughīthan marī'an murī`a, nāfi`an ghayra ḍārr, `ājilan ghayra ājil.
O Allah, shower upon us abundant rain, beneficial not harmful, swiftly and not delayed.