Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)

Bukhari :: Book 5 :: Volume 59 :: Hadith 523

Narrated Anas bin Malik:

The Prophet stayed with Safiya bint Huyai for three days on the way of Khaibar where he consummated his marriage with her. Safiya was amongst those who were ordered to use a veil.