Sunan an-Nasa'i, Volume 3, Book 24, Hadith 2629 (DarusSalam) ⓘ
The Mother of the Believers, 'Aishah, said: "I said: 'O Messenger of allah, shall we not go out and fight in jihad with you, for I do not think there is any deed in the qur'an that is better than jihad.' He said: 'No. the best and most beautiful (type) of jihad is Hajj to the House; Hajj Al-Mabrur. ''(sahih)
أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، قَالَ أَنْبَأَنَا جَرِيرٌ، عَنْ حَبِيبٍ، - وَهُوَ ابْنُ أَبِي عَمْرَةَ - عَنْ عَائِشَةَ بِنْتِ طَلْحَةَ، قَالَتْ أَخْبَرَتْنِي أُمُّ الْمُؤْمِنِينَ، عَائِشَةُ قَالَتْ قُلْتُ يَا رَسُولَ اللَّهِ أَلاَ نَخْرُجُ فَنُجَاهِدَ مَعَكَ فَإِنِّي لاَ أَرَى عَمَلاً فِي الْقُرْآنِ أَفْضَلَ مِنَ الْجِهَادِ . قَالَ " لاَ وَلَكُنَّ أَحْسَنُ الْجِهَادِ وَأَجْمَلُهُ حَجُّ الْبَيْتِ حَجٌّ مَبْرُورٌ " .
also referenced under: Hadith 2628 (Reference) & Book 24, Hadith 0 (In-Book)