Sahih al-Bukhari 1022
صحيح البخاري#1022SahihNarrated 'Abdullah bin Yazid Al-Ansari that he went out with Al-Bara' bin 'Azib, and Zaid bin Arqam and invoked for rain. He ('Abdullah bin Yazid) stood up but not on a pulpit and invoked Allah for rain and then offered two Rak'a prayers with loud recitation without pronouncing Adhan or Iqama. Abu Ishaq said that 'Abdullah bin Yazid had seen the Prophet (ﷺ) (doing the same)
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: 15:17