It was narrated that 'Aishah said:

“The Verse of stoning and of breastfeeding an adult ten times was revealed[1], and the paper was with me under my pillow. When the Messenger of Allah died, we were preoccupied with his death, and a tame sheep came in and ate it.” [1]: <i>These verses were abrogated in recitation but not ruling. Other ahadith establish the number for fosterage to be 5.</i>

حَدَّثَنَا أَبُو سَلَمَةَ، يَحْيَى بْنُ خَلَفٍ حَدَّثَنَا عَبْدُ الأَعْلَى، عَنْ مُحَمَّدِ بْنِ إِسْحَاقَ، عَنْ عَبْدِ اللَّهِ بْنِ أَبِي بَكْرٍ، عَنْ عَمْرَةَ، عَنْ عَائِشَةَ، ‏.‏ وَعَنْ عَبْدِ الرَّحْمَنِ بْنِ الْقَاسِمِ، عَنْ أَبِيهِ، عَنْ عَائِشَةَ، قَالَتْ لَقَدْ نَزَلَتْ آيَةُ الرَّجْمِ وَرَضَاعَةُ الْكَبِيرِ عَشْرًا وَلَقَدْ كَانَ فِي صَحِيفَةٍ تَحْتَ سَرِيرِي فَلَمَّا مَاتَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ وَتَشَاغَلْنَا بِمَوْتِهِ دَخَلَ دَاجِنٌ فَأَكَلَهَا ‏.‏