In connection with the incident of tahrim referred to in this Surah, the traditions of the Hadith mention two ladies who were among the wives of the Holy Prophet (upon whom be peace) at that time Hadrat Safiyyah and Hadrat Mariyah Qibtiyyah. The former (i. e. Hadrat Safiyyah) was taken to wife by the Holy Prophet after the conquest of Khaiber, and Khaiber was conquered, as has been unanimously reported, in A. H. 7. The other lady, Hadrat Mariyah, had been presented to the Holy Prophet by Muqawqis, the ruler of Egypt, in A. H. 7 and she had borne him his son, Ibrahim, in Dhil-Hijjah, A. H. 8.These historical events almost precisely determine that this Surah was sent down some time during A.H. 7 or A. H 8.