Which verse and surah did Allah use to remove rulings that applied in the early days of Islam, including that the Prophet, peace and blessings be upon him, would not pray over a deceased person who owed a debt?

The noble verse: "The Prophet is more worthy of the believers than themselves, and his wives are their mothers" [Al-Ahzab: 6]. This verse abolished rulings that were in the early days of Islam, among them that he (peace be upon him) would not pray over a deceased person who owed a debt. Then he said: "I am more worthy of the believers than themselves, so whoever dies owing a debt, its repayment is my responsibility, and whoever leaves behind wealth, it is for his heirs."