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.
muslim:1661b[Chain 1] Aḥmad b. Yūnus > Zuhayr [Chain 2] Abū Kurayb > Abū Muʿāwiyah [Chain 3] Isḥāq b. Ibrāhīm > ʿĪsá b. Yūnus Kulluhum

" You are a person having the remnants of Ignorance in him." (these words also occur, that Abu Dharr) said: Even up to this time of my old age? He (the Holy Prophet) said: Yes. In the tradition transmitted on the authority of Abu Mu'awiya (the words are):" Yes, in this time of your old age." In the tradition transmitted on the authority of 'Isa (the words are):" If you burden him (with an unbearable burden), you should sell him (and get another slave who can easily undertake this burden)." In the hadith transmitted on the authority of Zuhair (the words are):" Help him in that (work)." In the hadith transmitted by Abu Mu'awiya (separately) there is no such word: Then sell him or help him." This hadith concludes with these words:" Do not burden him beyond his capacity."  

مسلم:١٦٦١bوَحَدَّثَنَاهُ أَحْمَدُ بْنُ يُونُسَ حَدَّثَنَا زُهَيْرٌ ح وَحَدَّثَنَا أَبُو كُرَيْبٍ حَدَّثَنَا أَبُو مُعَاوِيَةَ ح وَحَدَّثَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ أَخْبَرَنَا عِيسَى بْنُ يُونُسَ كُلُّهُمْ

عَنِ الأَعْمَشِ بِهَذَا الإِسْنَادِ وَزَادَ فِي حَدِيثِ زُهَيْرٍ وَأَبِي مُعَاوِيَةَ بَعْدَ قَوْلِهِ إِنَّكَ امْرُؤٌ فِيكَ جَاهِلِيَّةٌ قَالَ قُلْتُ عَلَى حَالِ سَاعَتِي مِنَ الْكِبَرِ قَالَ نَعَمْ وَفِي رِوَايَةِ أَبِي مُعَاوِيَةَ نَعَمْ عَلَى حَالِ سَاعَتِكَ مِنَ الْكِبَرِ وَفِي حَدِيثِ عِيسَى فَإِنْ كَلَّفَهُ مَا يَغْلِبُهُ فَلْيَبِعْهُ وَفِي حَدِيثِ زُهَيْرٍ فَلْيُعِنْهُ عَلَيْهِ وَلَيْسَ فِي حَدِيثِ أَبِي مُعَاوِيَةَ فَلْيَبِعْهُ وَلاَ فَلْيُعِنْهُ انْتَهَى عِنْدَ قَوْلِهِ وَلاَ يُكَلِّفْهُ مَا يَغْلِبُهُ