The Smoke - 44:5 It is a command from Us; We send messengers.
In the context of verses 5, 6, the books of Allah contain the principles of mercy and forgiveness, and if we fulfill these principles, we will be shown mercy and forgiveness.
The Family Of Imran/3:132 Follow Allah and the messenger that you may be merciful.

The Cattle/6:155 And this is a blessed Book which We have sent down. So you should follow it and act righteously so that mercy may be shown to you.

The One Wrapping Himself Up/74:56 Unless Allah wills, they will not take admonition. It (the Qur´an) is the source of righteous behavior, the source of forgiveness.

The Smoke/44:5 It is a command from Us; We send messengers.
The Smoke/44:6 As a mercy from your Lord. He is the Hearing, the Knowing.

The Cattle/6:154 Indeed, We gave Moses the Book, complete in the best form, a detailed explanation of everything, guidance and mercy, so that they may believe in the meeting with their Lord.
The Cattle/6:157 "Nor can you say, "If the Book had been sent down to us, we would have been on a more right path than them". There has come to you a proof from your Lord, a guidance and a mercy. Who is more unjust than he who denies the signs of Allah and turns away from them? We will punish those who turn away from Our Verses with the worst of torment for their turning away."

The Heights/7:52 We have brought them a Book which We have detailed with knowledge, a guidance and mercy for a people who believe.
The Heights/7:203 "When You do not bring them a sign, they say: "What would have happened if you had asked for a sign". Say: "I follow only what has been revealed to me from my Lord."These are enlightenments from your Lord, a guidance and mercy for a people who believe."

Prophet Jonah/10:57 O people, there has come to you from your Lord a reminder, a healing for whatever troubles the hearts, a guidance and a mercy for those who believe.

Prophet Hud/11:17 Those who had before the Book of Moses as a guide and a mercy, but now have a clear proof from a witness from their Lord, they believe in it. Whichever group disbelieves in it, its place is the Fire. Have no doubt about it. It is a truth from your Lord. But the majority of the people do not believe.

Prophet Joseph/12:111 In their history is a lesson for those who are conscious. This is not a fabricated hadith, but a confirmation of what has gone before it, a detailed explanation of everything, and a guidance and Mercy for those who believe.

The Bee/16:64 We have sent down to you this Book so that you may make clear to them what they dispute. This Book is a guidance and a mercy for a people who believe.
The Bee/16:89 On the Day when We send from every community a witness against them and We bring you as a witness against them. We have sent down to you this Book as an explanation of all things, a guidance, a mercy and good tidings for the Muslims.

The Night Journey/17:82 We have sent down the Qur´an as a healing and mercy for those who believe, while it only increases the harm of the wrongdoers.

Mary/19:20 "He said, "How can I have a son when no human hand has touched me and I have not been unchaste?"
Mary/19:21 "It is so,"he said, "Your Lord said, ´It is easy for me. We will make him a sign for the people and a mercy from Us. This is a matter that has already been decided."

The Ants/27:76 This Qur´an explains many matters which the Children of Israel are still discussing.
The Ants/27:77 Surely it is a guide and a mercy for those who believe.

The Stories/28:43 After We destroyed the first generations (the people of Noah, Hud, Salih, Lot and Shu´ayb), We gave Moses the Book as a guide and a mercy, enlightening the people, that they may take admonition.
The Stories/28:43 After We destroyed the first generations (the people of Noah, Hud, Salih, Lot and Shu´ayb), We gave Moses the Book as a guide and a mercy, enlightening the people, that they may take admonition.
The Stories/28:46 Nor were you on the slope of Tur when We called out (to Moses). But (We inform you) as a mercy from your Lord that you may warn a people to whom no warner came before you, that they may take heed.
The Stories/28:86 You did not expect that you would be given this Book, but this is a mercy from your Lord. Do not back the disbelievers.

The Spider/29:51 Is it not enough for them that We have sent down this Book to you and it has been read to them? In that is a mercy and an admonition for a people who believe.

Luqman/31:2 These are the miracles of this wise Book.
Luqman/31:3 A guidance and a mercy for those who do good.

The Arabic Letter Sad/38:43 We returned to him his offspring with a multiplicity of them. This is a mercy and a message from Us to those who have understanding.

The Kneeling/45:20 These are enlightening proofs for the people, a guide and mercy for a people who have firm faith.

The Sandhills/46:12 Before that the Book of Moses was a guide and a mercy. This is a confirming Book sent down in Arabic to warn the wrongdoers and as good tidings to those who do good.