The One Covering Himself - 73:4 Or a little after half. Read the Qur´an carefully and thoughtfully.
In the context of verses 1, 2...7: Remembering Allah at night and thinking:
The Companies/39:9 "What do you say to one who prostrates himself at night and stands up and meditates and is conscious of the Hereafter and hopes for the mercy of his Lord? Say, "Are those who know and those who do not know the same?"Only those who have understanding take admonition."

The Night Journey/17:79 And as an extra good deed, meditate at night so that your Lord may raise you to an honorable station.

The Criterion/25:64 They prostrate themselves to their Lord in the solitude of the night, and they meditate.

The Romans/30:17 So praise Allah when you retire at night and when you rise in the morning.

The Mountain/52:49 Glorify Him at night and when the stars disappear.

The One Covering Himself/73:3 Halfway or a little before halfway.
The One Covering Himself/73:4 Or a little after half. Read the Qur´an carefully and thoughtfully.
The One Covering Himself/73:5 We will leave you a weighty word.
The One Covering Himself/73:6 Surely the construction of ideas at night is more effective and more expressive.
The One Covering Himself/73:20 Your Lord knows that you and a group of your companions get up less than two-thirds, half and one-third of the night. Allah determines the amount of the night and the day. He has forgiven you because He knows that you cannot do it. So read from the Qur´an as much as is easy for you. He knows that among you are the sick, those who seek sustenance from the bounty of Allah in the earth, and those who fight in the way of Allah. Read from it as much as is easy for you. Observe the prayer, pay the zakat, and make a debt to Allah through good deeds. Whatever good you do for yourselves you will find a better and greater reward in the sight of Allah. Seek forgiveness from Allah; Allah is Forgiving, Merciful.

The Man/76:26 Prostrate to Him at night and glorify Him in the long nights.


The Letter Qaf/50:40 Glorify Him at night and after the prostrations.