Musannaf Ibn Abi Shaybah 33639 — One of the heirs acknowledging

Waki' said: When two brothers are the heirs, and one of them acknowledges a man as a brother while the other denies it, Ibn Abi Layla used to say concerning it: This case is worked out from six shares: three shares for the one who did not acknowledge the lineage, two shares for the one claiming it, and one share for the one on whose behalf the claim was made.