In the lifetime of the Prophet ﷺ the sun eclipsed and then he offered a two rakʿat prayer.  

انْكَسَفَتِ الشَّمْسُ عَلَى عَهْدِ رَسُولِ اللَّهِ ﷺ فَصَلَّى رَكْعَتَيْنِ  

In the lifetime of the Messenger of Allah ﷺ the sun eclipsed and he went out dragging his clothes till he reached the Mosque. The people gathered around him and he led them and offered two rakʿat. When the sun (eclipse) cleared, he said, "The sun and the moon are two signs amongst the signs of Allah; they do not eclipse because of the death of someone, and so when an eclipse occurs, pray and invoke Allah till the eclipse is over." It happened that a son of the Prophet ﷺ called Ibrahim died on that day and the people were talking about that (saying that the eclipse was caused by his death).  

خَسَفَتِ الشَّمْسُ عَلَى عَهْدِ رَسُولِ اللَّهِ ﷺ فَخَرَجَ يَجُرُّ رِدَاءَهُ حَتَّى انْتَهَى إِلَى الْمَسْجِدِ وَثَابَ النَّاسُ إِلَيْهِ فَصَلَّى بِهِمْ رَكْعَتَيْنِ فَانْجَلَتِ الشَّمْسُ فَقَالَ إِنَّ الشَّمْسَ وَالْقَمَرَ آيَتَانِ مِنْ آيَاتِ اللَّهِ وَإِنَّهُمَا لاَ يَخْسِفَانِ لِمَوْتِ أَحَدٍ وَإِذَا كَانَ ذَاكَ فَصَلُّوا وَادْعُوا حَتَّى يُكْشَفَ مَا بِكُمْ وَذَاكَ أَنَّ ابْنًا لِلنَّبِيِّ ﷺ مَاتَ يُقَالُ لَهُ إِبْرَاهِيمُ فَقَالَ النَّاسُ فِي ذَاكَ