Sunan Ibn Majah 3598
سنن ابن ماجه#3598Da'ifحَدَّثَنَا 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 .
It was narrated that Anas said:“I saw Zainab the daughter of the Messenger of Allah (ﷺ) wearing a shirt of Siyara’ silk
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Al-AlbaniShadh
Muhammad Fouad Abd al-BaqiShadh
Zubair Ali ZaiDaif
In-book reference: 32:49