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.
suyuti:1800a

“The Messenger of Allah ﷺ said: ‘When you call upon Allah, then do so with the palms of your hands (upwards). Do not do so with the back of your hands (upwards). And when you finish, then wipe your face with them.’” (Using translation from Ibn Mājah 1181)   

السيوطي:١٨٠٠a

"إِذا دَعَوتَ الله فادع اللهَ ببطنِ كفيكَ، ولا تدعُ بظُهورِهما، فإِذا فرغت فامْسَحْ بهما وَجْهَكَ" .  

[هـ] ابن ماجة وابن نصر عن ابن عباس

See similar narrations below:

Collected by Ibn Mājah, Suyūṭī
ibnmajah:1181Abū Kurayb And Muḥammad b. al-Ṣabbāḥ > ʿĀʾidh b. Ḥabīb > Ṣāliḥ b. Ḥassān al-Anṣārī > Muḥammad b. Kaʿb al-Quraẓī > Ibn ʿAbbās

“The Messenger of Allah ﷺ said: ‘When you call upon Allah, then do so with the palms of your hands (upwards). Do not do so with the back of your hands (upwards). And when you finish, then wipe your face with them.’”  

ابن ماجة:١١٨١حَدَّثَنَا أَبُو كُرَيْبٍ وَمُحَمَّدُ بْنُ الصَّبَّاحِ قَالاَ حَدَّثَنَا عَائِذُ بْنُ حَبِيبٍ عَنْ صَالِحِ بْنِ حَسَّانَ الأَنْصَارِيِّ عَنْ مُحَمَّدِ بْنِ كَعْبٍ الْقُرَظِيِّ عَنِ ابْنِ عَبَّاسٍ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ إِذَا دَعَوْتَ اللَّهَ فَادْعُ بِبَاطِنِ كَفَّيْكَ وَلاَ تَدْعُ بِظُهُورِهِمَا فَإِذَا فَرَغْتَ فَامْسَحْ بِهِمَا وَجْهَكَ  

ibnmajah:3866Muḥammad b. al-Ṣabbāḥ > ʿĀʾidh b. Ḥabīb > Ṣāliḥ b. Ḥassān > Muḥammad b. Kaʿb al-Quraẓī > Ibn ʿAbbās

the Messenger of Allah (saas) said: "When you supplicate to Allah, supplicate with your palms uppermost, not with the backs of your hands uppermost, and when you finish, wipe your face with them."  

ابن ماجة:٣٨٦٦حَدَّثَنَا مُحَمَّدُ بْنُ الصَّبَّاحِ حَدَّثَنَا عَائِذُ بْنُ حَبِيبٍ عَنْ صَالِحِ بْنِ حَسَّانَ عَنْ مُحَمَّدِ بْنِ كَعْبٍ الْقُرَظِيِّ عَنِ ابْنِ عَبَّاسٍ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ إِذَا دَعَوْتَ اللَّهَ فَادْعُ بِبُطُونِ كَفَّيْكَ وَلاَ تَدْعُ بِظُهُورِهِمَا فَإِذَا فَرَغْتَ فَامْسَحْ بِهِمَا وَجْهَكَ  

suyuti:14821a
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السيوطي:١٤٨٢١a

"سَلُوا اللهَ بِبُطُونِ أَكُفَّكُمْ، وَلَا تَسْأَلُوه بِظُهُورِهَا، فَإِذَا فَرغْتُم فَامْسَحُوا بِهَا وُجُوهَكُمْ".  

[د] أبو داود [ق] البيهقى في السنن عن ابن عباس