Sahih al-Bukhari 1032
صحيح البخاري#1032SahihNarrated Aisha:Whenever Allah's Messenger (ﷺ) saw the rain, he used to say, "O Allah! Let it be a strong fruitful rain
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: 15:27