Hadithcore
Mishkat al-Masabih, 4194

She said that up to the death of God’s messenger they did not have a full meal of dates and water. [Literally, the two black things.] (Bukhari and Muslim.)

وَعَنْهَا قَالَتْ: تُوُفِّيَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَمَا شَبِعْنَا مِنَ الأسودين

References1 variant
In-Book Reference
Book 21, Hadith 33