I got the answer from NiceHash.com support:
https://ibb.co/haddd9bottom line FAQ or Help explanation on how nicehash work its UNCLEAR / Not Mention about the block found rewards.
My interpretation by Selling HASH POWER is not meant I Sell all my Hardware Miner to the pool or buyer.
NiceHash rule, once you sell hash power to buyer then ALL rewards will go to buyer and pool.
By my own experienced on selling hash power to NiceHash, IMHO for all beginner miner, please dont go to nicehash.com for mining if you want a fair reward if you found a block, because you will not have it.
Thank you.
Note:
Admin please close this thread, thank you.