And enter My Paradise!
This will be said to it at the time of death and on the Day of Judgement. This is like the angels giving glad tiding to the believer at his time of death and when he rises from his grave. Likewise is this statement here.
Ibn Abi Hatim recorded from Ibn `Abbas concerning Allah's statement,
يأَيَّتُهَا النَّفْسُ الْمُطْمَيِنَّةُ
ارْجِعِى إِلَى رَبِّكِ رَاضِيَةً مَّرْضِيَّةً
O tranquil soul! Come back to your Lord, well-pleased and well-pleasing!
He said, "This Ayah was revealed while Abu Bakr was sitting (with the Prophet ). So he said,
`O Messenger of Allah! There is nothing better than this!'
The Prophet then replied,
أَمَا إِنَّهُ سَيُقَالُ لَكَ هَذَا
This will indeed be said to you.
This is the end of the Tafsir of Surah Al-Fajr, and all praise and blessings are due to Allah