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.
bayhaqi:21630Abū Bakr > Wakīʿ > Ḥammād b. Zayd > ʿAbdullāh b. Abū Bakr b. Anas

[Machine] This is a letter from Sireen to us. This is what Anas bin Malik wrote, his servant Sireen wrote it for him about such and such, and on the two servants who work like him.  

البيهقي:٢١٦٣٠وَقَالَ وَحَدَّثَنَا أَبُو بَكْرٍ ثنا وَكِيعٌ عَنْ حَمَّادِ بْنِ زَيْدٍ عَنْ عَبْدِ اللهِ بْنِ أَبِي بَكْرِ بْنِ أَنَسٍ قَالَ

هَذِهِ مُكَاتَبَةُ سِيرِينَ عِنْدَنَا هَذَا مَا كَاتَبَ أَنَسُ بْنُ مَالِكٍ غُلَامَهُ سِيرِينَ كَاتَبَهُ عَلَى كَذَا وَكَذَا أَلْفًا وَعَلَى غُلَامَيْنِ يَعْمَلَانِ مِثْلَ عَمَلِهِ