Process of Validating Requirements
If you do not validate the requirements now, it’s likely that sometime during the project a stakeholder will come back and say "I didn’t agree to that" and throw the project off-course.
To validate the requirements you have gathered and documented, distribute your findings to the sponsor, stakeholders, and members of the project team to review. As with any review cycle, be sure to tell reviewers when you want their comments returned.
This approved document is the requirements baseline.