Aisha said, "Among the blessings Allah bestowed upon me is that the Messenger of Allah ﷺ passed away in my house, on my day, and between my chest and throat, and that Allah united my saliva with his at the moment of his death.Abdul-Rahman entered with a tooth-stick in his hand while I was supporting the Messenger of Allah ﷺ. I saw him looking at it, and I knew he loved the tooth-stick, so I asked, 'Shall I take it for you?'He nodded yes, so I took it, but it was too hard for him.I said, 'Shall I soften it for you?'He nodded yes, so I softened it and handed it to him. Before him was a small vessel, or perhaps a bowl (Umar was uncertain), containing water. He began dipping his hands into the water and wiping his face with them, saying, 'There is no god but Allah. Indeed, death has its agonies.'Then he raised his hand and kept saying, 'With the highest companions,' until his soul was taken and his hand fell."
إن من نعم الله علي أن رسول الله ﷺ توفي في بيتي، وفي يومي، وبين سحري ونحري، وأن الله جمع بين ريقي وريقه عند موته دخل علي عبد الرحمن وبيده السواك وأنا مسندة رسول الله ﷺ، فرأيته ينظر إليه، وعرفت أنه يحب السواك فقلت: آخذه لك؟ فأشار برأسه أن نعم، فتناولته فاشتد عليه، وقلت: ألينه لك؟ فأشار برأسه أن نعم فلينته، فأمره وبين يديه ركوة- أو علبة يشك عمر- فيها ماء، فجعل يدخل يديه في الماء، فيمسح بهما وجهه يقول: لا إله إلا الله إن للموت سكرات ثم نصب يده، فجعل يقول: في الرفيق الأعلى حتى قبض ومالت يده.
Bukhari reported it in the Maghazi (4449) from Muhammad bin Ubayd, who said, "Isa bin Yunus narrated to us, from Amr bin Saeed, who said, Ibn Abu Mulayka informed me that Abu Amr Zakwan, the freed slave of Ayesha, informed him that Ayesha used to say," then he mentioned it.It is also related from Ayesha that she said, "I saw the Messenger of Allah ﷺ while he was near death, with a cup containing water beside him. He kept dipping his hand into the cup and wiping his face with the water, then saying, 'O Allah, help me against the anguish of death,' or 'the throes of death.'"This is reported by Tirmidhi in the Sunan (978) and in the Shamail (387), by Ibn Majah (1622), and by Ahmad (24356), and Hakim declared it sahih (3/56-57). All of them transmit it through Layth bin Saad, from Yazid bin Had, from Musa bin Sarjis, from Qasim bin Muhammad, from Ayesha.Tirmidhi said, "Hasan gharib." So he said! But Ibn Sarjis is unknown, no one narrated from him except Ibn Had, and no one has declared him reliable.A note of caution, in Ibn Majah's version it appears as "Yazid bin Abu Habib," but the correct name, as transmitted by the group, is "Yazid bin Had."