"There was an eclipse of the sun during the time of the Messenger of Allah ﷺ. He stood and prayed, standing for a very long time, then he bowed for a very long time. Then he stood up and (remained standing) for a very long time, but shorter than the first time. Then he bowed for a very long time, but shorter than the first time. Then he prostrated, then he raised his head and stood for a long time, but it was shorter than the first time. The he stood up and (remained standing) for a long time, but it was shorter than the first time. Then he prostrated, and when he finished his prayer, the eclipse had ended. He addressed the people and praised and glorified Allah, then he said: 'The sun and the moon do not become eclipsed for the death or birth of anyone. If you see that then pray, give in charity, and remember Allah, the Mighty and Sublime.' And he said: 'O Ummah of Muhammad! There is no one who is more jealous than Allah (SWT) when His male or female slave commits Zina. O Ummah of Muhammad, if you knew what I know, you would laugh little and weep much.'" (Using translation from Nasāʾī 1500)  

خَسَفَتِ الشَّمْسُ عَلَى عَهْدِ رَسُولِ اللهِ ﷺ فَقَامَ فَصَلَّى فَأَطَالَ الْقِيَامَ جِدًّا ثُمَّ رَكَعَ فَأَطَالَ الرُّكُوعَ جِدًّا ثُمَّ رَفَعَ فَأَطَالَ الْقِيَامَ جِدًّا وَهُوَ دُونَ الْقِيَامِ الْأَوَّلِ ثُمَّ رَكَعَ فَأَطَالَ الرُّكُوعَ وَهُوَ دُونَ الرُّكُوعِ الْأَوَّلِ ثُمَّ سَجَدَ ثُمَّ رَفَعَ رَأْسَهُ فَأَطَالَ الْقِيَامَ وَهُوَ دُونَ الْقِيَامِ الْأَوَّلِ ثُمَّ رَكَعَ فَأَطَالَ الرُّكُوعَ وَهُوَ دُونَ الرُّكُوعِ الْأَوَّلِ ثُمَّ رَفَعَ فَأَطَالَ الْقِيَامَ وَهُوَ دُونَ الْقِيَامِ الْأَوَّلِ ثُمَّ رَكَعَ فَأَطَالَ الرُّكُوعَ وَهُوَ دُونَ الرُّكُوعِ الْأَوَّلِ ثُمَّ سَجَدَ فَفَرَغَ مِنْ صَلَاتِهِ وَقَدْ جُلِّيَ عَنِ الشَّمْسِ فَخَطَبَ النَّاسَ فَحَمِدَ اللهَ وَأَثْنَى عَلَيْهِ ثُمَّ قَالَ إِنَّ الشَّمْسَ وَالْقَمَرَ لَا يَنْكَسِفَانِ لِمَوْتِ أَحَدٍ وَلَا لِحَيَاتِهِ فَإِذَا رَأَيْتُمْ ذَلِكَ فَصَلُّوا وَتَصَدَّقُوا وَاذْكُرُوا اللهَ وَقَالَ «يَا أُمَّةَ مُحَمَّدٍ إِنَّهُ لَيْسَ أَحَدٌ أَغْيَرَ مِنَ اللهِ أَنْ يَزْنِيَ عَبْدُهُ أَوْ تَزْنِيَ أَمَتُهُ يَا أُمَّةَ مُحَمَّدٍ لَوْ تَعْلَمُونَ مَا أَعْلَمُ لَضَحِكْتُمْ قَلِيلًا وَلَبَكَيْتُمْ كَثِيرًا»  

The Prophet ﷺ delivered a Khutbah when the sun eclipsed and he said: 'Amma ba'd (to proceed).'" (Using translation from Nasāʾī 1501)  

أَنَّ النَّبِيَّ ﷺ خَطَبَ حِينَ انْكَسَفَتِ الشَّمْسُ فَقَالَ «أَمَّا بَعْدُ»