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."
Who prostrates and stands at night and meditates and is conscious of the Hereafter and hopes for the mercy of his Lord:
The Family Of Imran/3:191
"Those who remember Allah while standing, sitting and lying on their sides. They think about the structure and creation of the heavens and the earth: "Our Lord, You did not create them in vain, You are exalted, protect us from the torment of the Fire."
The Family Of Imran/3:192
"Our Lord, whomsoever You put into the Fire, surely You have disgraced him. There is no helper for the wrongdoers."
The Family Of Imran/3:193
"Our Lord, we heard a caller calling us to faith, saying, ´Believe in your Lord,´ and we believed. Our Lord, forgive us our sins, cover our evil deeds, and take our lives as the righteous.
The Family Of Imran/3:194
"Our Lord, give us what You promised us through Your messengers, and do not disgrace us on the Day of Resurrection. You never break your promise."