Seriously...anther thread about this? I don't even use this forum often, and I still see so many people asking about this. It will only hurt your yield. Those large leaves are hundreds of times more efficient than bud leaves at photosynthesis. This is BASIC botany, absolutely basic jesus...
I'll prove it, here is a shot of buds that developed fully on the very bottom of a bushy, short-as-hell white russian autoflower.
These buds received nearly zero light. They are small because they were the last to start growing, being on the bottom of the stem, but they are fully mature.