It is narrated from Sayyiduna Abdullah bin Amr رضي الله عنه that the Messenger of Allah صلى الله عليه وسلم went to Sayyidah Juwayriyyah bint al-Harithah رضي الله عنها on Friday while she was fasting. The Prophet صلى الله عليه وسلم asked: "Did you fast yesterday?" She replied: "No." The Prophet صلى الله عليه وسلم asked: "Will you fast tomorrow?" She said: "No." The Prophet صلى الله عليه وسلم said: "Then break your fast." In the narration of Janab Harun, it is: "Do you wish to fast tomorrow morning?"