โ€”โ€” on Aisha (4/9)
https://sunnah.com/bukhari:3896
This Hadith mentions that Khadija dies 3 years before the Hijra and then Muhammad marries Aisha around 2 years after that. It also mentions the age of Aisha in this Hadith, which I think is false, so the rest is a bit suspect too. That said, every biography (Seerah) of Muhammad has this same date for Khadijaโ€™s death.