My Lord! make me keep up prayer and from my offspring (too), O our Lord, and accept my prayer. (Abraham 14.40)

O our Lord! surely I have settled a part of my offspring in a valley unproductive of fruit near Thy Sacred House, our Lord! that they may keep up prayer; therefore make the hearts of some people yearn towards them and provide them with fruits; haply

And those who respond to their Lord and keep up prayer, and their rule is to take counsel among themselves, and who spend out of what We have given them. (The Counsel 42.38)

And We made his offspring the survivors.

And recite to them the news of Abraham
When he said to his father and his people: What do you worship?
They said, "We worship idols and remain to them devoted.
He said, "Do they hear you when you supplicate?
Or do they benefit you, or do they harm?
They said, "But we found our fathers doing thus.
He said, "Then do you see what you have been worshipping,
You and your ancient forefathers?
Indeed, they are enemies to me, except the Lord of the worlds,
Who created me, and He [it is who] guides me.
And it is He who feeds me and gives me drink.
And when I am ill, it is He who cures me
And who will cause me to die and then bring me to life
And who I aspire that He will forgive me my sin on the Day of Recompense.
(A Translation of Quran , 69-82)

And a sign to them is that We bear their offspring in the laden ship.