Aisha reported: The sun eclipsed in the time of the Messenger of Allah, peace and blessings be upon him, so he sent a caller to announce a congregational prayer. They gathered and arrived, then they exalted Allah and performed two cycles with four bowings and four prostrations.
Source: Ṣaḥīḥ Muslim 901
Grade: Sahih (authentic) according to Muslim
عَنْ عَائِشَةَ أَنَّ الشَّمْسَ خَسَفَتْ عَلَى عَهْدِ رَسُولِ اللهِ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ فَبَعَثَ مُنَادِيًا الصَّلَاةُ جَامِعَةٌ فَاجْتَمَعُوا وَتَقَدَّمَ فَكَبَّرَ وَصَلَّى أَرْبَعَ رَكَعَاتٍ فِي رَكْعَتَيْنِ وَأَرْبَعَ سَجَدَاتٍ
901 صحيح مسلم كتاب الكسوف باب صلاة الكسوف
