The Prophet (pbuh) said,

by Makola

    A disbeliever will be asked : `Suppose you had as much gold as to fill the earth, would you offer it to ransom yourself (from the hellfire)?` He will reply,‘Yes.’ Then it will be said to him, ‘You were asked for something easier than that (to join none in worship with Allah i.e. to accept Islam, but you refused.’

      Sahih Al-Bukhari, Vol.8, Hadith NO.546).