Musnad Ahmad 28:135

Abdullah ibn Muhammad narrated to us—Abdullah ibn Ahmad ibn Hanbal said: And I heard it myself from Abdullah ibn Muhammad ibn Abi Shaybah—Sharik narrated to us, from Abu Ishaq, from al-Sa’ib ibn Malik, from Abdullah ibn Amr, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "I looked into Paradise, and I saw that the majority of its people were the poor. And I looked into the Fire, and I saw that the majority of its people were the wealthy and women."