(18) باب التَّرْغِيبِ فِي الصَّدَقَةِ قَبْلَ أَنْ لاَ يُوجَدَ مَنْ يَقْبَلُهَا
Abu Huraira reported Allah's Messenger (way peace be upon him) as saying:
The Last Hour will not come before wealth becomes abundant and overflowing, so much so that a man takes Zakat out of his property and cannot find anyone to accept it from him and till the land of Arabia becomes meadows and rivers.
Reference: Sahih Muslim 157 b
In-book reference: Book 12, Hadith 76
USC-MSA web (English) reference(deprecated numbering scheme): Book 5, Hadith 2208