Authentic
graded by Al-Albani
Mishkat al-Masabih 4194
وَعَنْهَا قَالَتْ: تُوُفِّيَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَمَا شَبِعْنَا مِنَ الأسودين
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.)
Cited in Mishkat al-Masabih (No. 4194).