What portion of the withdrawal from a Registered Educational Savings Plan is tax-free?

Comprehensive and Detailed Explanation From Exact Extract:

The original capital contributed to a Registered Educational Savings Plan (RESP) is not taxed upon withdrawal, while other amounts, such as income or grants, are taxable to the beneficiary. The feedback from the document states:

"The original capital withdrawn from an RESP is not taxed; all other amounts are taxed in the hands of the beneficiary."