صَحِيحُ مُسْلِمٍ
Sahih Muslim 1240 b
The Book of Pilgrimage
It is permissible to perform 'Umrah during the months of Hajj
حَدَّثَنَا نَصْرُ بْنُ عَلِيٍّ الْجَهْضَمِيُّ، حَدَّثَنَا أَبِي، حَدَّثَنَا شُعْبَةُ، عَنْ أَيُّوبَ، عَنْ أَبِي الْعَالِيَةِ، الْبَرَّاءِ أَنَّهُ سَمِعَ ابْنَ عَبَّاسٍ، - رضى الله عنهما - يَقُولُ أَهَلَّ رَسُولُ اللَّهِ صلى الله عليه وسلم بِالْحَجِّ فَقَدِمَ لأَرْبَعٍ مَضَيْنَ مِنْ ذِي الْحِجَّةِ فَصَلَّى الصُّبْحَ وَقَالَ لَمَّا صَلَّى الصُّبْحَ مَنْ شَاءَ أَنْ يَجْعَلَهَا عُمْرَةً فَلْيَجْعَلْهَا عُمْرَةً .
Ibn 'Abbas (Allah be pleased with them) 'is reported to have said: The Messenger of Allah (ﷺ) put on Ihigm for Hajj. When four days of Dhu'l-Hijja were over, he led the dawn prayer, and when the prayer was complete, he said: He who wants to change it to Umra may do so.
Sahih Muslim, 1240 bSahihصحيح