The narrator Anas added that the Prophet ﷺ raised his hands (during the invocation) to such an extent that the whiteness of his armpits was visible.
عَنِ النَّبِيِّ ﷺ أَنَّهُ رَفَعَ يَدَيْهِ حَتَّى رَأَيْتُ بَيَاضَ إِبْطَيْهِ
Narrated Anas, "The Prophet ﷺ raised his hands (in invocation) till I saw the whiteness of his armpits."
عَنِ النَّبِيِّ ﷺ رَفَعَ يَدَيْهِ حَتَّى رَأَيْتُ بَيَاضَ إِبْطَيْهِ
I saw the Messenger of Allah ﷺ raising his hands (high enough) in supplication (for rain) that the whiteness of his armpits became visible.
رَأَيْتُ رَسُولَ اللَّهِ ﷺ يَرْفَعُ يَدَيْهِ فِي الدُّعَاءِ حَتَّى يُرَى بَيَاضُ إِبْطَيْهِ
[Machine] That the Prophet ﷺ raised his hands until the whiteness of his armpits could be seen.
أَنَّ النَّبِيَّ ﷺ رَفَعَ يَدَيْهِ حَتَّى رُئِيَ بَيَاضُ إِبِطَيْهِ
أَبُو الضُّحَى مُسْلِمُ بْنُ صُبَيْحٍ، عَنْ زَيْدِ بْنِ أَرْقَمَ
[Machine] I saw the Messenger of Allah ﷺ making a supplication and he raised his hands until I could see the whiteness of his armpits.
«رَأَيْتُ رَسُولَ اللهِ ﷺ دَعَا فَرَفَعَ يَدَيْهِ حَتَّى رَأَيْتُ بَيَاضَ إِبْطَيْهِ»