What is the portion due when one of two sons acknowledges a brother whose kinship is unestablished?

Primary text

If one of two sons acknowledges a brother whose kinship is unestablished, the acknowledged brother is due one-third of what is in the hand of the acknowledging son, which equates to one-sixth of the total estate. This is because the acknowledging son states, 'We are three, each entitled to one-third. I possess half the estate. Therefore, one-third of what is in my hand is due to you as an excess.'