What is the ruling when a lawful heir admits his father bequeathed one-third to someone, and another individual presents two witnesses claiming the testator bequeathed one-third to him?

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If the admitting heir is upright and just (*'Adil*), and he affirms the bequest, the legatee must swear an oath alongside him, and they share the one-third bequest. This is the position adopted by Abu Thawr and is consistent with the principle of Imam Shafi'i's school. The evidence is established by the Prophet's ruling of judgment based on a single witness and an oath, as narrated by Muslim.