Is the following Hadith authentic: “Indeed, death has agonies. O Allah, intensify the agonies of death for me and ease them for my Ummah”?

Al-Bukhari narrated from Aisha that the Prophet Muhammad, peace and blessings be upon him, at the time of his death, would dip his hands in water and wipe his face, saying: "There is no god but Allah; indeed, death has agonies." Then he raised his hand, saying: "To the Highest Companion." Also, the two Sheikhs (Al-Bukhari and Muslim) narrated from Ibn Mas'ud that he entered upon the Prophet while he was suffering from a severe illness. The Prophet said to him: "Indeed, I am afflicted with as much illness as two men among you," then he clarified that any harm that befalls a Muslim, Allah removes his sins by it. Al-Bukhari narrated from Anas that Fatimah said upon the Prophet's death: "Oh, the anguish of my father!" The Prophet then said to her: "There will be no anguish for your father after today." As for the Prophet's request to the Angel of Death for leniency, it has not been authenticated in the books of Sunnah (definition).