One who sleeps through a prayer or forgets it, its time is when he remembers it

His Eminence the Shaykh: I woke up late for the Fajr prayer, and there was only one minute or less until the sun rose. Should I pray the obligatory prayer because it is obligatory, or should I start with the rawatib?
Start with the rawatib; that is because when a person wakes up from sleep, the time of prayer for him is when he wakes up.As the Prophet (peace and blessings be upon him) and his family said: (One who sleeps through a prayer or forgets it, let him pray it when he remembers it) So you wake up and perform wudu, or perform ghusl if that is required, then you pray the rawatib, then the obligatory prayer.