Hadith 17:876
Muhammad ibn Fudayl narrated to us, from Sa’id ibn Razin, from the one who narrated to him, from Ali, that when he desired rain, he would take off his clothes and sit, and he would say: "It is newly created by the Throne."
حدثنا محمد بن فضيل عن سعيد بن رزين عمن حدثه عن علي أنه كان إذا أراد المطر خلع ثيابه وجلس ويقول حديث عهد بالعرش