Translation:

84. And We rained down on them a shower (of brimstone): then see what was the end of those who indulged in sin and crime!

Notes (Tafseer)

1052. The shower is expressly stated in Q. xi. 82 to have been of stones. In xv. 73-74, we are told that there was a terrible blast or noise (saihat) in addition to the shower of stones. Taking these passages into consideration along with Gen. xix. 24. (see n. 1049 above), I think it is legitimate to translate: "a shower of brimstone."