Narrated 'Ursa bin Az-Zubair:
I asked 'Aisha (whether the Prophet had performed 'Umra in Rajab). She replied, "Allah's Apostle never performed any 'Umra in Rajab."
حَدَّثَنَا أَبُو عَاصِمٍ، أَخْبَرَنَا ابْنُ جُرَيْجٍ، قَالَ أَخْبَرَنِي عَطَاءٌ، عَنْ عُرْوَةَ بْنِ الزُّبَيْرِ، قَالَ سَأَلْتُ عَائِشَةَ ـ رضى الله عنها ـ قَالَتْ مَا اعْتَمَرَ رَسُولُ اللَّهِ صلى الله عليه وسلم فِي رَجَبٍ.
Sahih al-Bukhari, 1777
Sahih al-Bukhari, Vol. 3, Book of Minor Pilgrimage, Hadith 5
Sahih al-Bukhari, Book of Minor Pilgrimage, Hadith 5