صحيح البخاري
From Sahih Bukhari (Hadith 1777):
Narrated 'Urwa bin Az-Zubair:I asked `Aisha (whether the Prophet (ﷺ) had performed `Umra in Rajab). She replied, "Allah's Messenger (ﷺ) never performed any `Umra in Rajab
Reference: Bukhari 1777