Sahih Muslim 1012
Sahih Muslim · Book 12: The Book of Zakat · Encouragement to give charity before there is no one to accept it
Abu Musa reported Allah's Messenger (ﷺ) as saying:
وَحَدَّثَنَا عَبْدُ اللَّهِ بْنُ بَرَّادٍ الأَشْعَرِيُّ ، وَأَبُو كُرَيْبٍ مُحَمَّدُ بْنُ الْعَلاَءِ قَالاَ حَدَّثَنَا أَبُو أُسَامَةَ عَنْ بُرَيْدٍ ، عَنْ أَبِي بُرْدَةَ ، عَنْ أَبِي مُوسَى ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " لَيَأْتِيَنَّ عَلَى النَّاسِ زَمَانٌ يَطُوفُ الرَّجُلُ فِيهِ بِالصَّدَقَةِ مِنَ الذَّهَبِ ثُمَّ لاَ يَجِدُ أَحَدًا يَأْخُذُهَا مِنْهُ وَيُرَى الرَّجُلُ الْوَاحِدُ يَتْبَعُهُ أَرْبَعُونَ امْرَأَةً يَلُذْنَ بِهِ مِنْ قِلَّةِ الرِّجَالِ وَكَثْرَةِ النِّسَاءِ " . وَفِي رِوَايَةِ ابْنِ بَرَّادٍ " وَتَرَى الرَّجُلَ " .
There would come a time for the people when a person would roam about with Sadaqa of gold, but he would find no one to accept it from him. And a man would be seen followed by forty women seeking refuge with him on account of the scarcity of males and abundance of females."