How do I REVEG one thats redy to harvest?

Have a couple great plants I need to reveg. they are redy within a couple days to harvest. How do I do it? Thanks for your expert help in advance

the guaranteed key to revegging a cannabis plant in flower is putting it back on an 18/6 schedule, or even 24 if thats what you prefer, i had to reveg a plant once because it was given to me and was way to dinky for a plant anyone would want to flower, it took a good 3-4 weeks before finally reverting to veg, but in the process the top of the plant always looked corkscrewed, and some bottom leaves even died, once it went back into veg tho it was fine, will be good to clone, grow more, or make a mother plant out of it. Where i cant speak is what you would do with your buds, i almost wanna say pick them but that would probably kill yer plant, maybe pick half of them and let the others wilt and give it a better chance of living through the whole thing, or if you wanna say screw the buds just throw it right back into veg, let them all wilt, and guarantee its life will go on. Good luck and be patient while its reveging