859. hadíth
وَ قَالَ اَلصَّادِقُ عَلَيْهِ اَلسَّلاَمُ: "لاَ عِتْقَ إِلاَّ مَا أُرِيدَ بِهِ وَجْهُ اَللَّهِ عَزَّ وَ جَلَّ".
Abu Abdullah Imam Jafar ibn Muhammad Al-Sadiq (a.s): "There is no valid emancipation except that which is done sincerely for the sake of Allah (swt), the Mighty and Majestic."