Narrated Abu Huraira (Radi-Allahu 'anhu):

Allah's Apostle (Sallallahu 'Alaihi Wa Sallam) said, "Anyone whom Allah has given wealth but he does not pay its Zakat, then, on the Day of Resurrection, his wealth will be presented to him in the shape of a bald-headed poisonous male snake with two poisonous glands in its mouth and it will encircle itself round his neck and bite him over his cheeks and say, "I am your wealth; I am your treasure." Then the Prophet (Sallallahu'Alaihi Wa Sallam) recited this Divine Verse:--

"And let not those who covetously withhold of that which Allah has bestowed
upon them of His Bounty." (3.180)

Bukhari Vol. 6 : No. 88