Muhammad bin Ishaq narrated with this chain the same narration, and he transmitted this addition: He said, "No new act was done (i.e., neither a new marriage nor a new dowry, etc.), and the Messenger of Allah (peace and blessings be upon him) had already kept her with him before this."
Hadith Referenceمسند اسحاق بن راهويه / كتاب النكاح و الطلاق / 651