from his uncle who said, "The Prophet ﷺ went out to invoke Allah for rain. He faced the Qibla invoking Allah. He turned over his cloak (inside out) and then offered two rakʿat and recited the Qur'an aloud in them."  

خَرَجَ النَّبِيُّ ﷺ يَسْتَسْقِي فَتَوَجَّهَ إِلَى الْقِبْلَةِ يَدْعُو وَحَوَّلَ رِدَاءَهُ ثُمَّ صَلَّى رَكْعَتَيْنِ جَهَرَ فِيهِمَا بِالْقِرَاءَةِ