<span>Retweeting creates the same tweet so that you can share it with your followers on the platform. Retweeting is mainly used for publicity of any person, place, event, figure,etc. Its just more of an endorsement type thing. You can also share any body's tweet by retweeting it.</span>
For your question, it is needed cite it. So the answer is Yes. The quotation should be followed by the author's name and a page reference in parentheses. It is for you to give credit to the author and to avoid from getting a plagiarized work.
Assuming that you're talking about the story of the 'sword and the stone'
After arthur Learns the truth, he tells sir Ector that he'll always think of him as a Father.
After the incident, sir Ector ( king Arthur's foster father) tell as much as he know about King Arthur heritage and his true parentage ( which he also know so little about)
