Sahih al-Bukhari, Hadith 1861

Narrated Aisha (mother of the faithful believers): I said, "O Allah's Messenger! Shouldn't we participate in Holy battles and Jihad along with you?" He replied, "The best and the most superior Jihad (for women) is Hajj which is accepted by Allah." `Aisha added: Ever since I heard that from Allah's Messenger I have determined not to miss Hajj.

حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا عَبْدُ الْوَاحِدِ، حَدَّثَنَا حَبِيبُ بْنُ أَبِي عَمْرَةَ، قَالَ حَدَّثَتْنَا عَائِشَةُ بِنْتُ طَلْحَةَ، عَنْ عَائِشَةَ أُمِّ الْمُؤْمِنِينَ ـ رضى الله عنها ـ قَالَتْ قُلْتُ يَا رَسُولَ اللَّهِ أَلاَ نَغْزُوا وَنُجَاهِدُ مَعَكُمْ فَقَالَ ‏ "‏ لَكُنَّ أَحْسَنُ الْجِهَادِ وَأَجْمَلُهُ الْحَجُّ، حَجٌّ مَبْرُورٌ ‏" ‏‏.‏ فَقَالَتْ عَائِشَةُ فَلاَ أَدَعُ الْحَجَّ بَعْدَ إِذْ سَمِعْتُ هَذَا مِنْ رَسُولِ اللَّهِ صلى الله عليه وسلم‏.‏

sunnah.com