"The Messenger of Allah stayed with Safiyyah bint Huyayy bin Akhtab on the way (back from) Khaibar for three days when he married her, then she was among those who were commanded to observe Hijab." (Using translation from Nasāʾī 3381)
أَنَّهُ سَمِعَ أَنَسًا يَقُولُ إِنَّ رَسُولَ اللهِ ﷺ «أَقَامَ عَلَى صَفِيَّةَ بِنْتِ حُيَيِّ بْنِ أَخْطَبَ بِطَرِيقِ خَيْبَرَ ثَلَاثَةَ أَيَّامٍ حِينَ أَعْرَسَ بِهَا ثُمَّ كَانَتْ فِيمَنْ ضُرِبَ عَلَيْهَا»