He saw Umm Kalthum, the daughter of the Messenger of Allah [SAW], wearing a Burdah of Sira' silk, and Sira' is a fabric with stripes of silk.
أَنَّهُ حَدَّثَنِي أَنَّهُ رَأَى عَلَى أُمِّ كُلْثُومٍ بِنْتِ رَسُولِ اللَّهِ ﷺ بُرْدَ سِيَرَاءَ وَالسِّيَرَاءُ الْمُضَلَّعُ بِالْقَزِّ
أَنَّهُ حَدَّثَهُ أَنَّهُ رَأَى عَلَى أُمِّ كُلْثُومٍ بِنْتِ رَسُولِ اللَّهِ ﷺ بُرْدًا سِيَرَاءَ قَالَ وَالسِّيَرَاءُ الْمُضَلَّعُ بِالْقَزِّ
[Machine] He told him that he saw Umm Kulthum, the daughter of the Prophet ﷺ , wearing a striped garment made of silk. Abu Abd al-Rahman said, "This is more likely to be true than what came before it, and with Allah is success."
أَنَّهُ حَدَّثَهُ أَنَّهُ رَأَى عَلَى أُمِّ كُلْثُومٍ ابْنَةِ النَّبِيِّ ﷺ بُرْدَ سِيَرَاءَ وَالسِّيَرَاءُ الْمُضَلَّعُ بِالْقَزِّ قَالَ أَبُو عَبْدِ الرَّحْمَنِ وَهَذَا أَوْلَى بِالصَّوَابِ الَّذِي قَبْلَهُ وَبِاللهِ التَّوْفِيقُ
that he had seen Um Kulthum, the daughter of Messenger of Allah ﷺ , wearing a red silk garment. (Using translation from Bukhārī 5842)
«أَنَّهُ رَأَى عَلَى أُمِّ كُلْثُومٍ بِنْتِ النَّبِيِّ ﷺ بُرْدَ حَرِيرٍ سِيَرَاءَ»
that he had seen Um Kulthum, the daughter of Messenger of Allah ﷺ , wearing a red silk garment. (Using translation from Bukhārī 5842)
«أَنَّهُ رَأَى عَلَى أُمِّ كُلْثُومٍ بِنْتِ رَسُولِ اللهِ ﷺ بُرْدَ حَرِيرٍ سِيَرَاءَ»
that he had seen Um Kulthum, the daughter of Messenger of Allah ﷺ , wearing a red silk garment. (Using translation from Bukhārī 5842)
أَنَّهُ رَأَى عَلَى أُمِّ كُلْثُومٍ بِنْتِ رَسُولِ اللهِ ﷺ بُرْدَ سِيَرَاءَ