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:15796Abū al-Ḥasan ʿAlī b. Aḥmad b. ʿAbdān > Aḥmad b. ʿUbayd al-Ṣaffār > ʿUthmān b. ʿUmar And Ziyād b. al-Khalīl > Musaddad > Abū ʿAwānah > Firās > Abū Ṣāliḥ > Zādhān Abū ʿUmar > Ibn ʿUmar Aʿtaq Ghulām Lah Thum Akhadh from al-Arḍ ʿŪd

[Machine] What reward do I have in it that is worth the same? Then he said, I heard the Messenger of Allah ﷺ say, "Whoever slaps his slave or beats him, the expiation for him is to set him free."  

البيهقي:١٥٧٩٦أَخْبَرَنَا أَبُو الْحَسَنِ عَلِيُّ بْنُ أَحْمَدَ بْنِ عَبْدَانَ أنبأ أَحْمَدُ بْنُ عُبَيْدٍ الصَّفَّارُ ثنا عُثْمَانُ بْنُ عُمَرَ وَزِيَادُ بْنُ الْخَلِيلِ قَالَا ثنا مُسَدَّدٌ ثنا أَبُو عَوَانَةَ عَنْ فِرَاسٍ عَنْ أَبِي صَالِحٍ عَنْ زَاذَانَ أَبِي عُمَرَ أَنَّ ابْنَ عُمَرَ ؓ أَعْتَقَ غُلَامًا لَهُ ثُمَّ أَخَذَ مِنَ الْأَرْضِ عُودًا فَقَالَ

مَا لِي فِيهِ مِنَ الْأَجْرِ مَا يُسَاوِي ذَا ثُمَّ قَالَ سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ مَنْ لَطَمَ مَمْلُوكَهُ أَوْ ضَرَبَهُ حَدًّا لَمْ يَأْتِهِ فَكَفَّارَتُهُ أَنْ يَعْتِقَهُ  

رَوَاهُ مُسْلِمٌ فِي الصَّحِيحِ عَنْ أَبِي كَامِلٍ عَنْ أَبِي عَوَانَةَ

See similar narrations below:

Collected by Muslim, Abū Dāwūd
muslim:1657aAbū Kāmil Fuḍayl b. Ḥusayn al-Jaḥdarī > Abū ʿAwānah > Firās > Dhakwān Abū Ṣāliḥ > Zādhān Abū ʿUmar > Atayt Ibn ʿUmar And Qad Aʿtaq Mamlūk > Faʾakhadh from al-Arḍ ʿŪd or Shayʾ

I came to Ibn 'Umar as he had granted freedom to a stave. He (the narrator further) said: He took hold of a wood or something like it from the earth and said: It (freedom of a slave) has not the reward evert equal to it, but the fact that I heard Messenger of Allah (way peace be upon him) say: He who slaps his slave or beats him, the expiation for it is that he should set him free.  

مسلم:١٦٥٧aحَدَّثَنِي أَبُو كَامِلٍ فُضَيْلُ بْنُ حُسَيْنٍ الْجَحْدَرِيُّ حَدَّثَنَا أَبُو عَوَانَةَ عَنْ فِرَاسٍ عَنْ ذَكْوَانَ أَبِي صَالِحٍ عَنْ زَاذَانَ أَبِي عُمَرَ قَالَ أَتَيْتُ ابْنَ عُمَرَ وَقَدْ أَعْتَقَ مَمْلُوكًا قَالَ

فَأَخَذَ مِنَ الأَرْضِ عُودًا أَوْ شَيْئًا فَقَالَ مَا فِيهِ مِنَ الأَجْرِ مَا يَسْوَى هَذَا إِلاَّ أَنِّي سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ مَنْ لَطَمَ مَمْلُوكَهُ أَوْ ضَرَبَهُ فَكَفَّارَتُهُ أَنْ يُعْتِقَهُ  

muslim:1657bMuḥammad b. al-Muthanná And Ibn Bashhār And al-Lafẓ Ibn al-Muthanná > Muḥammad b. Jaʿfar > Shuʿbah > Firās > Dhakwān > Zādhān > Ibn ʿUmar Daʿā Bighulām Lah Faraʾá Biẓahrih Athar > Lah Awjaʿtuk > Lā > Faʾant ʿAtīq > Thum Akhadh Shayʾ from al-Arḍ

I have caused you pain. He said: No. But he (Ibn Umar) said: You are free. He then took hold of something from the earth and said: There is no reward for me even to the weight equal to it. I heard Messenger of Allah ﷺ as saying: He who beats a slave without cognizable offence of his or slaps him (without any serious fault), then expiation for it is that he should set him free.  

مسلم:١٦٥٧bوَحَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى وَابْنُ بَشَّارٍ وَاللَّفْظُ لاِبْنِ الْمُثَنَّى قَالاَ حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ حَدَّثَنَا شُعْبَةُ عَنْ فِرَاسٍ قَالَ سَمِعْتُ ذَكْوَانَ يُحَدِّثُ عَنْ زَاذَانَ أَنَّ ابْنَ عُمَرَ دَعَا بِغُلاَمٍ لَهُ فَرَأَى بِظَهْرِهِ أَثَرًا فَقَالَ لَهُ أَوْجَعْتُكَ قَالَ لاَ قَالَ فَأَنْتَ عَتِيقٌ قَالَ ثُمَّ أَخَذَ شَيْئًا مِنَ الأَرْضِ فَقَالَ

مَا لِي فِيهِ مِنَ الأَجْرِ مَا يَزِنُ هَذَا إِنِّي سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ مَنْ ضَرَبَ غُلاَمًا لَهُ حَدًّا لَمْ يَأْتِهِ أَوْ لَطَمَهُ فَإِنَّ كَفَّارَتَهُ أَنْ يُعْتِقَهُ  

abudawud:5168Musaddad And ʾAbū Kāmil > Abū ʿAwānah > Firās > Abū Ṣāliḥ Dhakwān > Zādhān > Atayt Ibn ʿUmar Waqad Aʿtaq Mamlūk Lah Faʾakhadh from al-Arḍ ʿŪd or Shayʾ > Mā Lī Fīh from al-Ajr Mā Yaswá Hadhā

I came to Ibn ‘Umar when he set his slave free. He took a stick or something else from the earth and said; for me there is no reward even equivalent to this. I heard the Messenger of Allah (May peace be upon him) say: If anyone slaps or beats his slave the atonement due from him is to set him free.  

أبو داود:٥١٦٨حَدَّثَنَا مُسَدَّدٌ وَأَبُو كَامِلٍ قَالاَ حَدَّثَنَا أَبُو عَوَانَةَ عَنْ فِرَاسٍ عَنْ أَبِي صَالِحٍ ذَكْوَانَ عَنْ زَاذَانَ قَالَ أَتَيْتُ ابْنَ عُمَرَ وَقَدْ أَعْتَقَ مَمْلُوكًا لَهُ فَأَخَذَ مِنَ الأَرْضِ عُودًا أَوْ شَيْئًا فَقَالَ

مَا لِي فِيهِ مِنَ الأَجْرِ مَا يَسْوَى هَذَا سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ مَنْ لَطَمَ مَمْلُوكَهُ أَوْ ضَرَبَهُ فَكَفَّارَتُهُ أَنْ يُعْتِقَهُ