Sahih Bukhari Volume 2, Book 25, Hadith 1682

حَدَّثَنَا أَبُو نُعَيْمٍ، حَدَّثَنَا أَفْلَحُ بْنُ حُمَيْدٍ، عَنِ الْقَاسِمِ بْنِ مُحَمَّدٍ، عَنْ عَائِشَةَ ـ رضى الله عنها ـ قَالَتْ نَزَلْنَا الْمُزْدَلِفَةَ فَاسْتَأْذَنَتِ النَّبِيَّ صلى الله عليه وسلم سَوْدَةُ أَنْ تَدْفَعَ قَبْلَ حَطْمَةِ النَّاسِ، وَكَانَتِ امْرَأَةً بَطِيئَةً، فَأَذِنَ لَهَا، فَدَفَعَتْ قَبْلَ حَطْمَةِ النَّاسِ، وَأَقَمْنَا حَتَّى أَصْبَحْنَا نَحْنُ، ثُمَّ دَفَعْنَا بِدَفْعِهِ، فَلأَنْ أَكُونَ اسْتَأْذَنْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم كَمَا اسْتَأْذَنَتْ سَوْدَةُ أَحَبُّ إِلَىَّ مِنْ مَفْرُوحٍ بِهِ‏.

Narrated By 'Aisha : We got down at Al-Muzdalifa and Sauda asked the permission of the Prophet to leave (early) before the rush of the people. She was a slow woman and he gave her permission, so she departed (from Al-Muzdalifa) before the rush of the people. We kept on staying at Al-Muzdalifa till dawn, and set out with the Prophet but (I suffered so much that) I wished I had taken the permission of Allah's Apostle as Sauda had done, and that would have been dearer to me than any other happiness.