Al-Lu'lu Wal-Marjan 1788 — The Book About the Characteristics of the Hypocrites and Orders Concerning Them.

Anas Narrated from:

The Prophet صلى الله عليه وسلم said, “Allâh تعالى will say to that person of the (Hell) Fire who will receive the least punishment, ‘If you had everything on the earth, would you give it as a ransom to free yourself (i.e. save yourself from this Fire)?’ He will say, ‘Yes.’ Then Allâh will say, ‘While you were in the backbone of Adam, I asked you much less than this, i.e. not to worship others besides Me, but you insisted on worshipping others besides Me.’” ( Sahîh Al-Bukhârî, Hadîth No. 551, Vol. 4 )