Sayyidah Aishah Siddiqah (may Allah be pleased with her) narrates: The Prophet (peace and blessings be upon him) was asked: "Which deed is most excellent?" The Prophet (peace and blessings be upon him) said: "Faith in Allah, jihad in the way of Allah, and an accepted Hajj (Hajj mabrur)."
Al-Bazzar recorded it. Its chain contains a narrator, al-Walid bin Abdullah bin Abi Thawr, whom the majority declared da'if (weak), while he (al-Bazzar) and Sharik vouched for him.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الجهاد / 9439