Which correctly separates independent proof from a mere explanation of an admission?

Kitab al-Iqrar: Capacity, Unspecified Rights, and Amounts in Admissions

• An oath may support the speaker’s clarification, while proof of a greater claim is evaluated separately
• The speaker’s clarification always overrides all evidence
• Proof of an additional claim is heard only when the admission is void
• A beneficiary never needs evidence or an oath