Sahih al-Bukhari 5785
صحيح البخاري#5785SahihNarrated Abu Bakra:The solar eclipse occurred while we were sitting with the Prophet (ﷺ) He got up dragging his garment (on the ground) hurriedly till he reached the mosque The people turned (to the mosque) and he offered a two-rak`at prayer whereupon the eclipse was over and he traced us and said, "The sun and the moon are two signs among the signs of Allah, so if you see a thing like this (eclipse) then offer the prayer and invoke Allah till He remove that state
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 77:3