أَمْرٍ

A word in the Arabic language will either be 1) a verb or 2) a noun or 3) a particle – أَمْرٍ is a noun

A noun may either be 1) Definite or indefinite 2) Masculine or feminine 3) Singular, dual or plural 4) Nominative, accusative or genitive

أَمْرٌ is the natural state of this indefinite noun and it becomes أَمْرٍ due to: 1) a preposition that precedes it or 2) a possessed noun that precedes it or 3) it’s a noun of dependent declension a) نَعْتٌ / صِفَطٌ adjectives b) التَّوْكِيْدُ emphatic c) المَعْطُوْفٌ conjunction d) البَدَلُ synonym

Matter, Affair, News, Command, Authority

To command, order, enjoin

نَكِرَةٌمُفْرَدٌمُذَكَّرٌمَجْرُوْرٌأ م ربَاب نَصَرَأَمَرَ يَاْمَرُفَعْلٌاسْمٌالْمَصْدَرُ
IndefiniteSingularMasculineGenitiveRootCommandنPatternNounVerbal noun
Surah/Below are the 7 verses in the holy Quran containing the genitive, indefinite nounأَمْرٍ
Verse
So, you see those in whose hearts is a disease, hastening to them, sayingفَتَرَى الَّذِيْنَ فِي قُلُوْبِهِمْ مَرَضٌ يُسَارِعُوْنَ فِيْهِمْ يَقُوْلُوْنَ
We fear that a misfortune may strike us but perhaps Allah (SWT) will bring a victory or a decision from Himselfنَخْشَى أَنْ تُصِيْبَنَا دَآئِرَةٌ فَعَسَى اللهُ أَنْ يَاْتِيَ بِالفَتْحِ أَوْ أَمْرٍ مِّنْ عِنْدِهِ
5-52and they will become regretful over what they concealed within themselvesفَيُصْبِحُوا عَلَى مَآ أَسَرُّوا فِي أَنْفُسِهِمْ نَادِمِيْنَ
24-62
44-4
50-5
54-3
54-12
97-4The Angels and Jibreel (AS) descend therein by the permission of their Lord from every commandتَنَزَّلُ المَلَآئِكَةُ وَالرُّوْحُ فِيْهَا بِإِذْنِ رَبِّهِمْ مِنْ كُلِّ أَمْرٍ