Sahih al-Bukhari, Hadith 1777 ⓘ
Narrated 'Urwa bin Az-Zubair: I asked `Aisha (whether the Prophet had performed `Umra in Rajab). She replied, "Allah's Messenger 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.
also referenced under: Book 26, Hadith 5 (In-Book) & Volume 3, Book 27, Hadith 5 (USC-MSA)