Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
tabarani:13526ʿAbd al-Raḥman b. Salm al-Rāzī > ʿAlī b. Hāshim b. Marzūq from my father > Abū Jaʿfar al-Rāzī > al-Aʿmash > Ḥabīb b. Abū Thābit > Mujāhid

[Machine] I was sitting with Abdullah bin Umar, along with Urwah bin Zubair. Urwah asked him in which month did the Messenger of Allah ﷺ used to perform Umrah? He replied, "He used to perform Umrah in the month of Rajab."  

الطبراني:١٣٥٢٦حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ سَلْمٍ الرَّازِيُّ ثنا عَلِيُّ بْنُ هَاشِمِ بْنِ مَرْزُوقٍ ثنا أَبِي ثنا أَبُو جَعْفَرٍ الرَّازِيُّ عَنِ الْأَعْمَشِ عَنْ حَبِيبِ بْنِ أَبِي ثَابِتٍ عَنْ مُجَاهِدٍ قَالَ

كُنْتُ جَالِسًا مَعَ عَبْدِ اللهِ بْنِ عُمَرَ أَنَا وَعُرْوَةُ بْنُ الزُّبَيْرِ فَسَأَلَهُ عُرْوَةُ فِي أَيِّ شَهْرٍ كَانَ رَسُولُ اللهِ ﷺ يَعْتَمِرُ؟ قَالَ «كَانَ يَعْتَمِرُ فِي رَجَبٍ»