Sunan Ibn Majah, Volume 4, Book 32, Hadith 3598 (DarusSalam) ⓘ
It was narrated that Anas said: “I saw Zainab the daughter of the Messenger of Allah wearing a shirt of Siyara’ silk.*
حَدَّثَنَا أَبُو بَكْرٍ، حَدَّثَنَا عِيسَى بْنُ يُونُسَ، عَنْ مَعْمَرٍ، عَنِ الزُّهْرِيِّ، عَنْ أَنَسٍ، قَالَ رَأَيْتُ عَلَى زَيْنَبَ بِنْتِ رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ قَمِيصَ حَرِيرٍ سِيَرَاءَ .
also referenced under: Hadith 3598 (Reference) & Book 32, Hadith 3729 (In-Book)