From Sahih Bukhari (Hadith 1403):
Narrated Abu Huraira:Allah's Messenger (ﷺ) said, "Whoever is made wealthy by Allah and does not pay the Zakat of his wealth, then on the Day of Resurrection his wealth will be made like a baldheaded poisonous male snake with two black spots over the eyes. The snake will encircle his neck and bite his cheeks and say, 'I am your wealth, I am your treasure.' " Then the Prophet (ﷺ) recited the holy verses:-- 'Let not those who withhold . . .' (to the end of the verse)
Reference: Bukhari 1403