Tafsir of Al-Qasas 28:67

فٲما من تاب وآمن وعمل صالحا

But as for him who repented, believed, and did righteous deeds, means, in this world.

فعسى أن يكون من المفلحين

then perhaps he will be among those who are successful. means, on the Day of Resurrection. And the word; perhaps (`Asa), when used in reference to Allah, may He be exalted, implies that the thing described will inevitably come to pass, and this will undoubtedly happen by the grace and mercy of Allah