[3:17] They are steadfast, truthful, submitting, charitable, and meditators at dawn.
[9:112] They are the repenters, the worshipers, the praisers, the meditators, the bowing and prostrating, the advocators of righteousness and forbidders of evil, and the keepers of GOD's laws. Give good news to such believers.
[17:79-80] During the night, you shall meditate for extra credit, that your Lord may raise you to an honorable rank. And say, "My Lord, admit me an honorable admittance, and let me depart an honorable departure, and grant me from You a powerful support."
[25:63-66] The worshipers of the Most Gracious are those who tread the earth gently, and when the ignorant speak to them, they only utter peace. In the privacy of the night, they meditate on their Lord, and fall prostrate. And they say, "Our Lord, spare us the agony of Hell; its retribution is horrendous. It is the worst abode; the worst destiny."
[26:217-220] And put your trust in the Almighty, Most Merciful. Who sees you when you meditate during the night. And your frequent prostrations. He is the Hearer, the Omniscient.
[39:9] Is it not better to be one of those who meditate in the night, prostrating and staying up, being aware of the Hereafter, and seeking the mercy of their Lord? Say, "Are those who know equal to those who do not know?" Only those who possess intelligence will take heed.
[50:39-40] ... praise and glorify your Lord before sunrise, and before sunset. During the night you shall meditate on His name, and after prostrating.
Sura 73 verses 1 through 8, and 20