Musannaf Ibn Abi Shaybah 8562 — Those who used to perform the prayer

Abbad bin Tamim narrates from his uncle (may Allah be pleased with him), who said: I went with the Prophet (peace and blessings be upon him) for the prayer for rain. He faced the qiblah and turned his back towards the people, turned his cloak over, and led two rak'ahs of prayer in which he recited aloud.