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.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī

ذِكْرُ الْأَمْرِ بِالْعَتَاقَةِ عِنْدَ رُؤْيَةِ كُسُوفِ الشَّمْسِ أَوِ الْقَمَرِ لِمَنْ قَدْرَ عَلَى ذَلِكَ

ibnhibban:2855 – Aḥmad b. ʿAlī b. al-Muthanná > Abū Khaythamah > Muʿāwiyah b. ʿAmr > Zāʾidah > Hishām b. ʿUrwah > Fāṭimah b. al-Mundhir > Asmāʾ

The Prophet (peace be upon him) used to command us to free slaves on the occasion of an eclipse (Using translation from Abū Dāʾūd 1192)  

ابن حبّان:٢٨٥٥ – أَخْبَرَنَا أَحْمَدُ بْنُ عَلِيِّ بْنِ الْمُثَنَّى حَدَّثَنَا أَبُو خَيْثَمَةَ حَدَّثَنَا مُعَاوِيَةُ بْنُ عَمْرٍو حَدَّثَنَا زَائِدَةُ عَنْ هِشَامِ بْنِ عُرْوَةَ عَنْ فَاطِمَةَ بِنْتِ الْمُنْذِرِ عَنِ أَسْمَاءَ قَالَتْ

كَانَ النَّبِيُّ ﷺ «يَأْمُرُ بِالْعَتَاقَةِ فِي صَلَاةِ الْكُسُوفِ»  

See similar narrations below:

Collected by Bukhārī, Abū Dāwūd, Aḥmad, Ṭabarānī
bukhari:1054 – Rabīʿ b. Yaḥyá > Zāʾidah > Hishām > Fāṭimah > Asmāʾ

No doubt the Prophet ﷺ ordered people to manumit slaves during the solar eclipse.  

البخاري:١٠٥٤ – حَدَّثَنَا رَبِيعُ بْنُ يَحْيَى قَالَ حَدَّثَنَا زَائِدَةُ عَنْ هِشَامٍ عَنْ فَاطِمَةَ عَنْ أَسْمَاءَ قَالَتْ

لَقَدْ أَمَرَ النَّبِيُّ ﷺ بِالْعَتَاقَةِ فِي كُسُوفِ الشَّمْسِ  

abudawud:1192 – Zuhayr b. Ḥarb > Muʿāwiyah b. ʿAmr > Zāʾidah > Hishām > Fāṭimah > Asmāʾ

The Prophet (peace be upon him) used to command us to free slaves on the occasion of an eclipse  

أبو داود:١١٩٢ – حَدَّثَنَا زُهَيْرُ بْنُ حَرْبٍ حَدَّثَنَا مُعَاوِيَةُ بْنُ عَمْرٍو حَدَّثَنَا زَائِدَةُ عَنْ هِشَامٍ عَنْ فَاطِمَةَ عَنْ أَسْمَاءَ قَالَتْ

كَانَ النَّبِيُّ ﷺ يَأْمُرُ بِالْعَتَاقَةِ فِي صَلاَةِ الْكُسُوفِ  

ahmad:26923 – ʿAthhām b. ʿAlī Abū ʿAlī al-ʿĀmirī > Hishām b. ʿUrwah > Fāṭimah > Asmāʾ

[Machine] If we were commanded to say the talbiyah (يا لبيك اللهم لبيك) during the prayer of the solar eclipse.  

أحمد:٢٦٩٢٣ – حَدَّثَنَا عَثَّامُ بْنُ عَلِيٍّ أَبُو عَلِيٍّ الْعَامِرِيُّ قَالَ حَدَّثَنَا هِشَامُ بْنُ عُرْوَةَ عَنْ فَاطِمَةَ عَنْ أَسْمَاءَ قَالَتْ

إِنْ كُنَّا لَنُؤْمَرُ بِالْعَتَاقَةِ فِي صَلَاةِ الْخُسُوفِ  

tabarani:20785 – Muḥammad b. al-Naḍr al-Azdī > Muʿāwiyah b. ʿAmr > Zāʾidah > Hishām b. ʿUrwah > Fāṭimah b. al-Mundhir > Asmāʾ b. Abū Bakr

[Machine] "That the Prophet ﷺ commanded the freeing of slaves during a solar eclipse."  

الطبراني:٢٠٧٨٥ – حَدَّثَنَا مُحَمَّدُ بْنُ النَّضْرِ الْأَزْدِيُّ ثنا مُعَاوِيَةُ بْنُ عَمْرٍو ثنا زَائِدَةُ عَنْ هِشَامِ بْنِ عُرْوَةَ عَنْ فَاطِمَةَ بِنْتِ الْمُنْذِرِ عَنْ أَسْمَاءَ بِنْتِ أَبِي بَكْرٍ

«أَنَّ النَّبِيَّ ﷺ أَمَرَ بِالْعِتَاقَةِ عِنْدَ كُسُوفِ الشَّمْسِ»