Abdullah bin Umar reported,

I would sometimes recall the words of the poet as I gazed upon the face of the Prophet ﷺ while he prayed for rain. He would not step down before every spout was gushing with water."A fair-skinned man through whose face rain is sought from the clouds, a sustainer of orphans, a protector of widows."These are the words of Ubayy Talib.

Bukhari 1009

Sahih

وقال عمر بن حمزة حدثنا

سالم عن أبيه

ربما ذكرت قول الشاعر وأنا أنظر إلى وجه النبي ﷺ يستسقي فما ينزل حتى يجيش كل ميزاب وأبيض يستسقى الغمام بوجهه ثمال اليتامى عصمة للأرامل وهو قول أبي طالب

البخاري 1009صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Istisqa
Chapter
Asking the imam for rain prayer when people are afflicted by drought
Numbering
Darussalam 1009
Bukhari 1009