Sahih al-Bukhari 3204
صحيح البخاري#3204SahihNarrated Abu Mas`ud:The Prophet (ﷺ) said, "the sun and the moon do not eclipse because of the death or life of someone, but they are two signs amongst the Signs of Allah. So, if you see them, offer the Prayer (of eclipse)
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: 59:15