It is narrated from Sayyiduna Anas bin Malik (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Performing Hajj in the way of Allah is such that a single dirham spent in it is equal to seven hundred dirhams (in reward)."
Imam al-Tabarani (may Allah have mercy on him) said: "Muhammad bin Abi Isma'il narrated this hadith in this way from Harb bin Zuhayr, from Yazid al-Duba'i (may Allah have mercy on him), from Sayyiduna Anas bin Malik (may Allah be pleased with him). And Ata bin al-Sa'ib narrated it from Harb bin Zuhayr, from Ibn Buraydah, from his father (Sayyiduna Buraydah, may Allah be pleased with him). And no one narrated it from Muhammad bin Abi Isma'il except Muhammad bin Bishr; Husayn bin Abd al-Awwal is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب الميم / 5694
Hadith Takhrij«أخرجه الضياء المقدسي فى «الأحاديث المختارة» برقم: 2738، 2739، والبزار فى «مسنده» برقم: 7598»