"Salim said: 'What is Al-Istabraq?' I said: 'A thick type of Ad-Dibaj, and a coarse type of it.' He said: 'I heard 'Abdullah (bin 'Umar) say: "Umar saw a Hullah of Sundus with a man, and he brought it to the Messenger of Allah [SAW] and said: 'Buy this'" and he quoted the Hadith.
سَالِمٌ مَا الإِسْتَبْرَقُ قُلْتُ مَا غَلُظَ مِنَ الدِّيبَاجِ وَخَشُنَ مِنْهُ قَالَ سَمِعْتُ عَبْدَ اللَّهِ بْنَ عُمَرَ يَقُولُ رَأَى عُمَرُ مَعَ رَجُلٍ حُلَّةَ سُنْدُسٍ فَأَتَى بِهَا النَّبِيَّ ﷺ فَقَالَ اشْتَرِ هَذِهِ وَسَاقَ الْحَدِيثَ