Step 1: Understand the term 'Retiring Partner.'
A retiring partner is a partner who decides to leave the partnership, either by choice or by the terms of the partnership agreement.
Step 2: Evaluate the statement.
The retiring partner is commonly referred to as the outgoing partner, as they are exiting the partnership.
Step 3: Conclusion.
Thus, the statement that a retiring partner is called an outgoing partner is correct, and I agree with it.
Final Answer: \[ \boxed{Agree} \]