Surah Ar-Rahman 55:54

مُتَّكِـِٔينَ عَلَىٰ فُرُشٍۭ بَطَآئِنُهَا مِنْ إِسْتَبْرَقٍ ۚ وَجَنَى ٱلْجَنَّتَيْنِ دَانٍ

[They are] reclining on beds whose linings are of silk brocade, and the fruit of the two gardens is hanging low.

Translation: Saheeh International

Tafsir

They will be reclining muttaki’īna is a circumstantial qualifier operated by an omitted verb that is to say yatana‘‘amūna they will enjoy bliss while reclining’ upon couches lined with heavy silk brocade istabraq thick or coarse silk the outer lining being of fine silk sundus. …

Excerpt from Tafsir al-Jalalayn, commentary on 55:54, via Quran.com. The reader has the full commentary and 9 more tafsirs.