Anas bin Malik reported,

The Prophet ﷺ stayed three days between Khaybar and Medina, during which he consummated his marriage with Safiya bint Huyayy. I invited the Muslims to his wedding feast. There was no bread and no meat at it. He ordered that leather mats be spread out, and dates, dried curd, and clarified butter were placed upon them. That was his wedding feast.The Muslims said, "Is she one of the Mothers of the Believers, or one of those his right hand possesses?"They said, "If he veils her, then she is among the Mothers of the Believers, and if he does not veil her, then she is one of those his right hand possesses."When he set out, he prepared a place for her behind him and drew the veil between her and the people.

أخبرنا علي بن حجر قال حدثنا إسمعيل قال حدثنا حميد

عن أنس قال

أقام النبي ﷺ بين خيبر والمدينة ثلاثا يبني بصفية بنت حيي فدعوت المسلمين إلى وليمته فما كان فيها من خبز ولا لحم أمر بالأنطاع وألقى عليها من التمر والأقط والسمن فكانت وليمته فقال المسلمون إحدى أمهات المؤمنين أو مما ملكت يمينه فقالوا إن حجبها فهي من أمهات المؤمنين وإن لم يحجبها فهي مما ملكت يمينه فلما ارتحل وطأ لها خلفه ومد الحجاب بينها وبين الناس