The ruling on shaving parts of the hair in 'Umrah and Hajj

Question:
He sent you a message and says in his second question: What is the ruling on one who performed 'Umrah or Hajj and then shaved scattered parts of his hair, taking a little from the front, a little from the sides, and a little from the back, without cutting or shaving all the hair?

Answer:
This action is sufficient, but in the second time he should shave his head. As for what has passed, as long as he took from all the sides, it is a sufficient action, and it is the lesser option.