Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
darimi:3205ʿAbdullāh b. Saʿīd > Ibn Idrīs > Ibn Jurayj > ʿAṭāʾ

[Machine] Ibn Abbas, loyalty cannot be sold, meaning it cannot be consumed by the enslavement of a person twice.  

الدارمي:٣٢٠٥حَدَّثَنَا عَبْدُ اللَّهِ بْنُ سَعِيدٍ حَدَّثَنَا ابْنُ إِدْرِيسَ عَنْ ابْنِ جُرَيْجٍ عَنْ عَطَاءٍ قَالَ قَالَ

ابْنُ عَبَّاسٍ لَا يُبَاعُ الْوَلَاءُ أَيُؤْكَلُ بِرَقَبَةِ رَجُلٍ مَرَّتَيْنِ