You are still copying someone else’s ideas without acknowledging the author, even if you were going to say the same thing. Every single time you quote from another source, you must include the citation. See Plagiarism - Section 30.3.2(1) in the Code of Student Behavior.
Code of Student Behaviour Section 30.3.2(1)
No Student shall submit the words, ideas, images or data of another person as the Student’s own in any academic writing, essay, thesis, project, assignment, presentation or poster in a course or program of study.
Note: This definition does not include intentionality; it's plagairism whether it was intentional or accidental!