Narrated '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 'Adbullah bin Yazid had seen the Prophet (ﷺ) (doing the same)
Narrated `Abbad bin Tamim
that his uncle (who was one of the companions of the Prophet) had told him, "The Prophet (ﷺ) went out with the people to invoke Allah for rain for them. He stood up and invoked Allah for rain, then faced the Qibla and turned his cloak (inside out) and it rained."