Is a person considered an apostate if he curses Allah in anger unintentionally, then prays and dies, knowing that cursing Allah is an act of apostasy?

Blaspheming Allah is an act of disbelief (kufr) and apostasy from Islam, by scholarly consensus. Anger is not an excuse unless it reaches the point of complete loss of awareness. The repentance of the blasphemer is accepted in this world and the hereafter if its conditions are met. Merely uttering the two Shahadas or praying is not sufficient to return to Islam; rather, it is essential to abandon this crime, express remorse, and resolve not to return to it. If the blasphemer dies, their matter is to be viewed with a good presumption, and the ruling for them is directed towards repentance and Islam.