Sahih al-Bukhari 6383
Sahih al-Bukhari · Book 80: Invocations · Invoking Allah while performing ablution
Narrated Abu Musa:
حَدَّثَنَا مُحَمَّدُ بْنُ الْعَلاَءِ ، حَدَّثَنَا أَبُو أُسَامَةَ ، عَنْ بُرَيْدِ بْنِ عَبْدِ اللَّهِ ، عَنْ أَبِي بُرْدَةَ ، عَنْ أَبِي مُوسَى ، قَالَ دَعَا النَّبِيُّ صلى الله عليه وسلم بِمَاءٍ فَتَوَضَّأَ، ثُمَّ رَفَعَ يَدَيْهِ فَقَالَ " اللَّهُمَّ اغْفِرْ لِعُبَيْدٍ أَبِي عَامِرٍ ". وَرَأَيْتُ بَيَاضَ إِبْطَيْهِ فَقَالَ " اللَّهُمَّ اجْعَلْهُ يَوْمَ الْقِيَامَةِ فَوْقَ كَثِيرٍ مِنْ خَلْقِكَ مِنَ النَّاسِ " .
The Prophet (ﷺ) asked for some water and performed the ablution, and then raised his hands (towards the sky) and said, "O Allah! Forgive `Ubaid Abi 'Amir." I saw the whiteness of his armpits (while he was raising his hands) and he added, "O Allah! Upgrade him over many of Your human creatures on the Day of Resurrection."