Whenever the Prophet ﷺ saw a rising cloud, his face would turn red, and when it rained he would say, "Allah, make it a wholesome, beneficial downpour."
حدثنا وكيع عن سفيان عن المقدام عن أبيه
كان النبي ﷺ إذا رأى ناشئا احمر وجهه فإذا مطرت قال اللهم صيبا هنيئا
No references are available.
Its isnad is sahih. It has already appeared at 24026.