What is the ruling on someone who woke up at the time of the Fajr adhan, then unintentionally fell back asleep, then woke up two minutes before sunrise, and completed his ablution after sunrise?

The person mentioned must make up the Fajr prayer they missed due to oversleeping, even if it is sunrise, and there is no sin upon them, because the pen is lifted from the sleeper, as the Prophet, peace and blessings be upon him, said: "There is no negligence in sleep." One should also take measures to help wake up for prayer, such as setting an alarm.