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
nasai:1488 – Muḥammad b. al-Muthanná > Muʿādh b. Hishām from my father > Qatādah > Abū Qilābah > al-Nuʿmān b. Bashīr

The Prophet ﷺ said: "If there is an eclipse of the sun or the moon, pray like the last obligatory prayer you did before that."  

النسائي:١٤٨٨ – أَخْبَرَنَا مُحَمَّدُ بْنُ الْمُثَنَّى عَنْ مُعَاذِ بْنِ هِشَامٍ قَالَ حَدَّثَنِي أَبِي عَنْ قَتَادَةَ عَنْ أَبِي قِلاَبَةَ عَنِ النُّعْمَانِ بْنِ بَشِيرٍ

أَنَّ النَّبِيَّ ﷺ قَالَ إِذَا خَسَفَتِ الشَّمْسُ وَالْقَمَرُ فَصَلُّوا كَأَحْدَثِ صَلاَةٍ صَلَّيْتُمُوهَا  

See similar narrations below:

Collected by Nasāʾī's Kubrá, Suyūṭī
nasai-kubra:1886 – Muḥammad b. al-Muthanná > Muʿādh b. Hishām from my father > Qatādah > Abū Qilābah > al-Nuʿmān b. Bashīr > Nabī Allāh ﷺ

The Prophet ﷺ said: "If there is an eclipse of the sun or the moon, pray like the last obligatory prayer you did before that." (Using translation from Nasāʾī 1488)  

الكبرى للنسائي:١٨٨٦ – أَخْبَرَنَا مُحَمَّدُ بْنُ الْمُثَنَّى قَالَ حَدَّثَنَا مُعَاذُ بْنُ هِشَامٍ قَالَ حَدَّثَنِي أَبِي عَنْ قَتَادَةَ عَنْ أَبِي قِلَابَةَ عَنِ النُّعْمَانِ بْنِ بَشِيرٍ أَنَّ نَبِيَّ اللهِ ﷺ قَالَ

«إِذَا انْخَسَفَتِ الشَّمْسُ وَالْقَمَرُ فَصَلُّوا كَأَحْدَثِ صَلَاةٍ صَلَّيْتُمُوهَا»