Khalid bin Yazid خالد بن يزيد الجمحي الإسكندراني · The Book of Praying for Rain (Al-Istisqa')

His paternal uncle had told him that he went out with the Messenger of Allah (ﷺ) to pray for rain. He turned his rida' around, and turned his back to the people, then he prayed two rak'ahs and recited loudly.