How to purge System/Pass Drug Test?

Hi, I did some marijuana this weekend, then I got a call from an employer asking me to come in for a job interview. I am 100% positive that they are going to ask me to take a drug test. Today is Monday, I took it last night, and the drug test will be either on Friday, Saturday or Sunday. I’m asking you jellies to pool your knowledge and help me pass this test! What do I need to do to clean my system in 4–5 days