Hello everyone, I recently purchased a ball python from a friend of a friend and, although I've done a lot of research, I'm a bit confused about feeding..

I had asked the man I purchased him from when he last fed him, and when he thought I should feed him again. He told me that he fed him 10 days ago, and that he should be ready to feed again in 2-3 days, BUT to wait until he poops, because according to him, that's how you know his food has been fully digested.'

It has now been 3 days and my snake has not pooped, so I'm just wondering if I should go ahead and feed him, or if I should wait a few more days? Thanks for answering!