سُنَنُ أَبِي دَاوُدَ
Sunan Abi Dawud 1170
The Book Of The Prayer For Rain (Kitab al-Istisqa')
Raising The Hands During Istisqa'
حَدَّثَنَا نَصْرُ بْنُ عَلِيٍّ، أَخْبَرَنَا يَزِيدُ بْنُ زُرَيْعٍ، حَدَّثَنَا سَعِيدٌ، عَنْ قَتَادَةَ، عَنْ أَنَسٍ، أَنَّ النَّبِيَّ صلى الله عليه وسلم كَانَ لاَ يَرْفَعُ يَدَيْهِ فِي شَىْءٍ مِنَ الدُّعَاءِ إِلاَّ فِي الاِسْتِسْقَاءِ فَإِنَّهُ كَانَ يَرْفَعُ يَدَيْهِ حَتَّى يُرَى بَيَاضُ إِبْطَيْهِ .
Narrated Anas: The Prophet (ﷺ) was not accustomed to raise his hands in any supplication he made except when praying for rain. He would then raise them high enough so much so that the whiteness of his armpits was visible.
Sunan Abi Dawud, 1170Sahih (Al-Albani)صحيح (الألباني)