Hadith 1292
Ibn Shawwal (the freed slave of Umm Habiba) reported that he went to Umm Habiba (the wife of Allah's Apostle) (ﷺ) who informed him that Allah's Apostle (ﷺ) sent her from Muzdalifa during the night.
Hadith 1292
It is narrated from Umm Habiba: We used to set forth from Muzdalifa to Mina, (very early in the dawn) when it was dark. And in the narration of Naqid (the words are): "We set from Muzdalifa in the darkness (of the dawn)."