Hadithcore
Sahih al-Bukhari, 5441
sahih

Narrated Abu `Uthman:

I was a guest of Abu Huraira for seven days. Abu Huraira, his wife and his slave used to get up and remain awake for one-third of the night by turns. Each would offer the night prayer and then awaken the other. I heard Abu Huraira saying, "Allah's Messenger (ﷺ) distributed dates among his companions and my share was seven dates, one of which was a Hashafa (a date which dried on the tree before it was fully ripe).

حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ، عَنْ عَبَّاسٍ الْجُرَيْرِيِّ، عَنْ أَبِي عُثْمَانَ، قَالَ تَضَيَّفْتُ أَبَا هُرَيْرَةَ سَبْعًا، فَكَانَ هُوَ وَامْرَأَتُهُ وَخَادِمُهُ يَعْتَقِبُونَ اللَّيْلَ أَثْلاَثًا، يُصَلِّي هَذَا، ثُمَّ يُوقِظُ هَذَا‏.‏ وَسَمِعْتُهُ يَقُولُ قَسَمَ رَسُولُ اللَّهِ صلى الله عليه وسلم بَيْنِ أَصْحَابِهِ تَمْرًا، فَأَصَابَنِي سَبْعُ تَمَرَاتٍ إِحْدَاهُنَّ حَشَفَةٌ‏.‏

References2 variants
In-Book Reference
Book 70, Hadith 69
USC-MSA web (English) reference
Vol. 7, Book 65, Hadith 352 (deprecated numbering scheme)