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:36:56 –

They and their spouses - in shade, reclining on adorned couches.  

they (hum, the subject) and their spouses, beneath the shade (zilāl is the plural of zulla or zill, and is the predicate) in other words, no ˹blinding˺ sunlight affects them, reclining upon (muttaki’ūna is a second predicate, connected to ‘alā, ‘upon’) couches (arā’ik is the plural of arīka, which is a bed inside a curtained canopy, or the bedding therein).
القرآن:٣٦:٥٦ –

هُمْ وَأَزْوَاجُهُمْ فِي ظِلَالٍ عَلَى الْأَرَائِكِ مُتَّكِئُونَ  

{هم} مبتدأ {وأزواجهم في ظلال} جمع ظلة أو ظل خبر أي لا تصيبهم الشمس {على الأرائك} جمع أريكة، وهو السرير في الحجلة أو الفرش فيها {متكئون} خبر ثان متعلق بعلى.