English Translation
Narrated Abbas bin Tamim from his uncle who said, "The Prophet went out to invoke Allah for rain. He faced the Qibla invoking Allah. He turned over his cloak (inside out) and then offered two Rakat and recited the Quran aloud in them."
This hadith is from Sahih al-Bukhari, the most rigorously authenticated collection in Islamic scholarship. No editorial opinion is added.