The forbiddance of using four things and four dishes

I asked Aba Abdullah as-Sadiq (MGB) about chess and backgammon. He (MGB)said, ‘God’s Prophet (MGB) said, Do not play them.’ I asked, ‘What about listening to songs?’ He (MGB) said, ‘There is no use in it. Do not listen…

“God’s Prophet (MGB) ordered us to bury the following four things: hair, teeth, nails and blood.”