It is narrated from the Mother of the Believers, Sayyidah Aishah (may Allah be pleased with her), that the Prophet (peace and blessings be upon him) said: "Seek provision in the hidden treasures (the concealed places) of the earth."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Hisham bin Urwah except Hisham bin Abdullah bin Ikrimah, and Mus'ab al-Zubayri is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب الميم / 8097
Hadith Takhrij«أخرجه أبو يعلى فى «مسنده» برقم: 4384، وابن حجر فى «المطالب العالية» برقم: 1361، والطبراني فى «الأوسط» برقم: 895»