On the authority of 'A'ishah: that the Messenger of Allah, may Allah bless him and grant him peace, used to have raisins steeped for him, then dates would be thrown into it, or dates would be steeped and raisins thrown into it.¹

3758 — Ziyad ibn Yahya al-Hassani narrated to us, Abu Bahr narrated to us, 'Attab ibn 'Abd al-'Aziz al-Himmani narrated to us, Safiyyah bint 'Atiyyah narrated to me, saying:
I entered with some women from 'Abd al-Qays upon 'A'ishah, and we asked her about dates and raisins. She said: I used to take a handful of dates and a handful of raisins, and throw them into a vessel, then I would rub them, and then give it to the Prophet, may Allah bless him and grant him peace, to drink.²

Chapter 10: On the nabidh of unripe dates

3759 — Muhammad ibn Bashshar narrated to us, Mu'adh ibn Hisham narrated to us, my father narrated to me, on the authority of Qatadah

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¹ Its chain of transmission is weak due to the anonymity of the woman from Asad, and there is disagreement concerning it from Mis'ar — that is, Ibn Kidam — as we have clarified in "Musnad Ahmad" (24198).
Al-Bayhaqi also transmitted it in 8/307 via the path of Abu Dawud, with this chain.
Al-Tabarani transmitted it in "Al-Awsat" (7828) via the path of Humayd ibn Sulayman, from Mujahid, from 'A'ishah. Its chain is weak due to the unknown status of Humayd ibn Sulayman.
The hadith will come later from 'A'ishah with another wording that does not contain mixing the two things, at number (3711) in this work.
See also what follows it.
See the complete discussion on it, its authentication, and the explanation of its wordings in "Musnad Ahmad" (24198).

² Its chain is weak due to the unknown status of Safiyyah bint 'Atiyyah, and the weakness of Abu Bahr — that is, 'Abd al-Rahman ibn 'Uthman al-Bakrawi.
Al-Bayhaqi also transmitted it in 8/308 via the path of Abu Dawud, with this chain.
The sound report from 'A'ishah is what will come at number (3711).
Al-Khattabi said: Her saying "amrusuhu" means that she would rub it with her fingers in the water, and "al-mars" and "al-marth" have the same meaning.