The Prophet ﷺ went out to the prayer ground to pray for rain. He faced the qiblah, prayed two rakats, and turned his cloak around.Sufyan said, Masudi informed me, from Abu Bakr, who said, "He placed the right side over the left."
خرج النبي ﷺ إلى المصلى يستسقي، واستقبل القبلة فصلى ركعتين، وقلب رداءه. قال سفيان: فأخبرني المسعودي، عن أبي بكر قال: جعل اليمين على الشمال.
Bukhari narrated it in the chapter on rain prayer (1027) from Abdullah bin Muhammad, and Muslim narrated it in the chapter on rain prayer (2/894) from Yahya bin Yahya, both of them from Sufyan, from Abdullah bin Abu Bakr, who heard Abbad bin Tamim, from his uncle, who related it. The wording given is that of Bukhari. Abbad bin Tamim is Ibn Zayd bin Asim Mazini Ansari, and his uncle is Abdullah bin Zayd bin Asim Mazini Ansari, as his name will be mentioned shortly.As for Muslim, he said, "So he prayed for rain, faced the qibla, turned his cloak inside out, and prayed two rakahs," meaning he performed the prayer afterward. Bukhari also narrated it this way (1012). So either Sufyan transmitted it in one manner, or he transmitted it in a particular way, but those who narrated from him did not concern themselves precisely with the exact wording of the hadith.As for Bukhari's statement, "Sufyan said, Masudi informed me...", most commentators treated this as a suspended (mualaq) addition and did not count Masudi among his narrators. However, Ibn Mawwaq said that it appears he took it from Abdullah bin Muhammad, his teacher in this matter, and the fact that they did not count Masudi among his narrators does not necessarily mean that this passage was not connected to him through that route, since Bukhari did not intend to narrate from him directly but merely mentioned, in passing, an addition that Masudi had added. Hafiz endorsed this in Fath al-Bari (2/515).His statement "from Abu Bakr" refers to Ibn Muhammad bin Amr bin Hazm, who narrates from Abbad bin Tamim, from his uncle, from the Prophet ﷺ. This is how Ibn Majah narrated it (1267) through the route of Sufyan, from Yahya bin Saeed, from Abu Bakr bin Hazm, similarly to how his son Abdullah narrated it. Ibn Khuzayma (1414) and Humaydi (416) also narrated it this way, except that they paired Sufyan with Masudi, from Abu Bakr bin Hazm.Abu Bakr and his son Abdullah both narrate from Abbad bin Tamim, and this becomes clearly evident in what Ibn Khuzayma narrated through the route of Sufyan, who said, Masudi and Yahya related to us, from Abu Bakr, and I said to Abdullah bin Abu Bakr, "The hadith that Yahya and Masudi related to us, from your father, from Abbad bin Tamim." He said, "I heard it myself from Abbad bin Tamim, narrating it to my father, from Abdullah bin Zayd," and then he related the hadith.