The supplication 'Allahummarzuqni Taubatan Nasuha Qoblal Maut' translates to 'O Allah, grant me a sincere repentance before death.' It's a powerful prayer seeking divine guidance and forgiveness before one's passing. 'Taubatan Nasuha' signifies a genuine, heartfelt repentance with a firm commitment to avoid repeating past mistakes. This prayer underscores the importance of seeking repentance throughout life and preparing for the afterlife by seeking forgiveness from Allah.