"And they will wear garments of sundus (fine silk) and istabraq (thick silk)," and they are two types of silk.
Muhammad said: It was said that the sundus is the thin variety of brocade, and the istabraq is its thick variety. "Reclining therein on thrones (ara'ik)," in the interpretation of Ibn Abbas: The ara'ik are couches upon which there are canopies.
Surat al-Kahf from (verses 32-40).
﴿وَيلبسُونَ ثيابًا من سندس وإستبرق﴾ وَهُمَا نَوْعَانِ مِنَ الْحَرِيرِ.
قَالَ مُحَمَّدٌ: قِيلَ: إِنَّ السُّنْدُسَ رَقِيقُ الدِّيبَاجِ، وَالْإِسْتَبْرَقَ ثَخِينُهُ. ﴿مُتَّكِئِينَ فِيهَا على الأرائك﴾ تَفْسِيرُ ابْنِ عَبَّاسٍ: الْأَرَائِكَ: السُّرُرَ عَلَيْهَا الحجال.
سُورَة الْكَهْف من (آيَة ٣٢ ٤٠).
