The Book of Prayer - Rain
9/1. Chapter:
Raising The Hands In Supplication When Praying For Rain
Sahih Muslim
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا يَحْيَى بْنُ أَبِي بُكَيْرٍ، عَنْ شُعْبَةَ، عَنْ ثَابِتٍ، عَنْ أَنَسٍ، قَالَ رَأَيْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَرْفَعُ يَدَيْهِ فِي الدُّعَاءِ حَتَّى يُرَى بَيَاضُ إِبْطَيْهِ .
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.
Reference : Sahih Muslim 895aIn-book reference : Book 9, Hadith 5USC-MSA web (English) reference : Book 4, Hadith 1951