Why 2:240 is written in quran?

>Sahih al-Bukhari, 4530 • Sahih al-Bukhari, Vol. 6, Book of Prophetic Commentary on the Qur'an, Hadith 53 • Sahih al-Bukhari, Book of Prophetic Commentary on the Qur'an, Hadith 53 > >>Narrated Ibn Az-Zubair: >> >>**I said to 'Uthman bin 'Affan (while he was collecting the Qur'an) regarding the Verse:-- "Those of you who die and leave wives ..." (2.240) "This Verse was abrogated by an other Verse. So why should you write it? (Or leave it in the Qur'an)?" 'Uthman said. "O son of my brother! I will not shift anything of it from its place**." >>Chapter 2 verse 240 > >*Those of you who die leaving widows should bequeath for them a year’s maintenance without forcing them out.1 But if they choose to leave, you are not accountable for what they reasonably decide for themselves. And Allah is Almighty, All-Wise*. Dr. Mustafa Khattab, the Clear Quran That

**Why this verse is in quran even thou it was abrogated and why did Uthman wrote it in quran**