Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
quran:26:4 –

If We willed, We could send down to them from the sky a sign for which their necks would remain humbled.  

If We will We will send down to them a sign from the heaven before which their necks will remain (fa-zallat, ˹although grammatically in the past tense˺ is being used in the sense of the imperfect tense) bowed in humility, and they will believe (since ‘necks’ are described as ‘bowed in humility’, ˹a status˺ which in fact refers to those who possess them, the adjectival form ˹khādi‘ūn, ‘bowed in humility’˺ used therein is the one ˹normally˺ used for rational beings).
القرآن:٢٦:٤ –

إِنْ نَشَأْ نُنَزِّلْ عَلَيْهِمْ مِنَ السَّمَاءِ آيَةً فَظَلَّتْ أَعْنَاقُهُمْ لَهَا خَاضِعِينَ  

{إن نشأ ننزل عليهم من السماء آية فظلّت} بمعنى المضارع: أي تظل، أي تدوم {أعناقهم لها خاضعين} فيؤمنون، ولما وصفت الأعناق بالخضوع الذي هو لأربابها جمعت الصفة جمع العقلاء.