If an agent is authorized only to establish (Tathbit) a right, does he gain the authority to take possession (Qabd) of that right?

Primary text

If the principal authorizes the agent only to establish a right, the agent does not possess the authority to take possession of it. This is the position of Al-Shafi'i. The justification is that the authorization to establish the right does not inherently include possession, either explicitly by wording or by customary understanding, as not everyone deemed suitable for establishing a right is necessarily suitable for receiving possession of it.