Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
ahmad:11103Ḥasan > Ḥammād b. Salamah > Bishr b. Ḥarb > Abū Saʿīd al-Khudrī

[Machine] I saw the Messenger of Allah, ﷺ , making this supplication at Arafat and he placed the palms of his hands pointing downwards towards the ground.  

أحمد:١١١٠٣حَدَّثَنَا حَسَنٌ حَدَّثَنَا حَمَّادُ بْنُ سَلَمَةَ عَنْ بِشْرِ بْنِ حَرْبٍ عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ قَالَ

رَأَيْتُ رَسُولَ اللهِ ﷺ بِعَرَفَةَ يَدْعُو هَكَذَا وَجَعَلَ بَاطِنَ كَفَّيْهِ مِمَّا يَلِي الْأَرْضَ  


See similar narrations below:

Collected by Abū Dāwūd, Aḥmad
abudawud:1487ʿUqbah b. Mukram > Salm b. Qutaybah > ʿUmar b. Nabhān > Qatādah > Anas b. Mālik

I saw the Messenger of Allah ﷺ supplicating Allah in this manner with the palms of his hands and also with their backs upwards.  

أبو داود:١٤٨٧حَدَّثَنَا عُقْبَةُ بْنُ مُكْرَمٍ حَدَّثَنَا سَلْمُ بْنُ قُتَيْبَةَ عَنْ عُمَرَ بْنِ نَبْهَانَ عَنْ قَتَادَةَ عَنْ أَنَسِ بْنِ مَالِكٍ قَالَ

رَأَيْتُ رَسُولَ اللَّهِ ﷺ يَدْعُو هَكَذَا بِبَاطِنِ كَفَّيْهِ وَظَاهِرِهِمَا  

ahmad:11093Rawḥ > Ḥammād > Bishr b. Ḥarb > Abū Saʿīd al-Khudrī

[Machine] The Prophet ﷺ was standing in Arafat and supplicating in this manner. He raised his hands towards the sky and placed the palms of his hands towards his stomach, extended below his waistline.  

أحمد:١١٠٩٣حَدَّثَنَا رَوْحٌ حَدَّثَنَا حَمَّادٌ عَنْ بِشْرِ بْنِ حَرْبٍ عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ قَالَ

كَانَ رَسُولُ اللهِ ﷺ وَاقِفًا بِعَرَفَةَ يَدْعُو هَكَذَا وَرَفَعَ يَدَيْهِ حِيَالَ ثَنْدُوَتَيْهِ وَجَعَلَ بُطُونَ كَفَّيْهِ مِمَّا يَلِي الْأَرْضَ