(1) باب رَفْعِ الْيَدَيْنِ بِالدُّعَاءِ فِي الاِسْتِسْقَاءِ
Anas reported:
I saw the Messenger of Allah (ﷺ) raising his hands (high enough) in supplication (for rain) that the whiteness of his armpits became visible. (ID)
Reference (ID): Sahih Muslim 895 a (ID)
In-book reference (ID): Book 9, Hadith 5 (ID)
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1951 (ID)