Explained in Detail - 41:44
"Had We made it a Qur´an in a foreign language, they would have said, "Should not its verses have been explained?"Whether in a foreign language or in Arabic, say, "It is a guide and a cure for those who believe (regardless of their language). As for those who do not believe, their ears are heavy. It is closed to them as if it were addressed to them from a distant place."
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Explained in Detail/41:44
"Had We made it a Qur´an in a foreign language, they would have said, "Should not its verses have been explained?"Whether in a foreign language or in Arabic, say, "It is a guide and a cure for those who believe (regardless of their language). As for those who do not believe, their ears are heavy. It is closed to them as if it were addressed to them from a distant place."
The Cave/18:57
Who is more unjust than he who, when he is reminded of the signs and miracles of his Lord, turns away from them, forgetting what he used to do? We have put a veil over their hearts that prevents them from understanding it (the Qur´an) and a weight on their ears. No matter how much you call them to Hidayet, they will never find the truth.
Explained in Detail/41:5
"They said: "We are fixed in our minds against what you call us to, and there is a heaviness in our ears and a veil between us and you. Do what you will, and we will do it."
The Cattle/6:25
"Some of them listen to you. But We put veils over their hearts to prevent them from understanding and weights over their ears. Even if they see every miracle, they do not believe in it. So when they come to you, they dispute with you, and the disbelievers say, "This is but a myth."
The Night Journey/17:45
When you recite the Qur´an, We place between you and those who do not believe in the Hereafter an invisible barrier.
The Night Journey/17:46
And We put shells in their hearts and weights in their ears to prevent them from understanding it. When you remember your Lord only in the Qur´an, they turn back in hatred
The Night Journey/17:47
"We know well how they hear when they listen to you, and how they say among themselves, "You are only following a bewitched man"."
Luqman/31:7
When Our verses are recited to him, he turns away arrogantly, as if he had never heard them, as if there were a weight on his ears. Give him glad tidings of a painful torment.
The Prophets/21:2
Whenever a new message (dhikr) comes to them from their Lord, they listen to it without taking it seriously.
The Cave/18:101
Those whose eyes were veiled against My Message, and they could not listen...