Ar-Ra'd 13:28

<h2>Disbelievers ask for Miracles, Allah's Response to Them</h2><p>Allah says that the idolators said,</p><p>لَوْلاَ</p><p>(Why is not), meaning, there should be,</p><p>أُنزِلَ عَلَيْهِ ءَايَةٌ مِّن رَّبِّهِ</p><p>(a sign sent down to him from his Lord) The idolators also said,</p><p>فَلْيَأْتِنَا بِـَايَةٍ كَمَآ أُرْسِلَ الاٌّوَّلُونَ</p><p>(Let him then bring us an Ayah like the ones (Prophets) that were sent before (with signs)!) 21:5 We mentioned this subject several times before and stated that Allah is able to bring them what they wanted. There is a Hadith which mentions that the idolators asked the Prophet to turn Mount As-Safa into gold and, they also asked him for a spring to gush forth for them and to remove the mountains from around Makkah and replace them with green fields and gardens. Allah revealed to His Messenger : "If You wish, O Muhammad, I will give them what they asked for. However, if they disbelieve thereafter, I will punish them with a punishment that I did not punish any among the `Alamin (mankind and the Jinns). Or, if you wish, I will open for them the door to repentance and mercy." The Prophet said,</p><p>«بَلْ تَفْتَحُ لَهُمْ بَابَ التَّوبَةِ وَالرَّحْمَة»</p><p>(Rather, open for them the door to repentance and mercy.) This is …

Who have believed and whose hearts have rest in the remembrance of Allah. Verily in the remembrance of Allah do hearts find rest!

"Those who believe, and whose hearts find satisfaction in the remembrance of Allah: for without doubt in the remembrance of Allah do hearts find satisfaction.

Those who believe (in the Oneness of Allah - Islamic Monotheism), and whose hearts find rest in the remembrance of Allah, Verily, in the remembrance of Allah do hearts find rest.

Those who believe, and whose hearts find comfort in the remembrance of God. Surely, it is in the remembrance of God that hearts find comfort.”