'Abdullah bin Masud (RAH) narrated that:

the Messenger of Allah said: “There is no one who does not pay Zakat on his wealth but a bald headed snake will be made to appear to him on the Day of Resurrection, until it encircles his neck.” Then the messenger of Allah recited the following Verse from the Book of Allah the Most High: “And let not those who covetously withhold of that which Allah had bestowed on them of His Bounty(wealth) think that is good for them”

حَدَّثَنَا مُحَمَّدُ بْنُ أَبِي عُمَرَ الْعَدَنِيُّ، حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنْ عَبْدِ الْمَلِكِ بْنِ أَعْيَنَ، وَجَامِعِ بْنِ أَبِي رَاشِدٍ، سَمِعَا شَقِيقَ بْنَ سَلَمَةَ، يُخْبِرُ عَنْ عَبْدِ اللَّهِ بْنِ مَسْعُودٍ، عَنْ رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ قَالَ ‏

‏ مَا مِنْ أَحَدٍ لاَ يُؤَدِّي زَكَاةَ مَالِهِ إِلاَّ مُثِّلَ لَهُ يَوْمَ الْقِيَامَةِ شُجَاعًا أَقْرَعَ حَتَّى يُطَوِّقَ عُنُقَهُ ‏

‏ ‏.‏ ثُمَّ قَرَأَ عَلَيْنَا رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ مِصْدَاقَهُ مِنْ كِتَابِ اللَّهِ تَعَالَى ‏(‏وَلاَ يَحْسَبَنَّ الَّذِينَ يَبْخَلُونَ بِمَا آتَاهُمُ اللَّهُ مِنْ فَضْلِهِ}‏ الآيَةَ ‏.‏