Zakaat - A cause of Famine

Buraydah radhiyallahu anhu relates that Rasoolullah Sallallahu alayhi wasallam  said,
"The nation that withholds Zakaat (i.e. does not pay it), Allah afflicts famine on them".

Tabraani

Ibne Umar radhiyallahu anhumaa relates that Rasoolullah Sallallahu alayhi wasallam once said,
"O Muhaajireen! there are five (dreadful) sins; if you fall into these - and I take refuge in Allah from the evil of these sins lest you fall into them - (you will face horrible disasters) "... "Thirdly, if people stop paying Zakaat, rain will be withheld from them, and were it not for the animals, not a single drop of rain would fall upon them."