Man Lā Yaḥḍuruh al-Faqīh
Hadith 951953 - وَقَالَ أَبُو جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ: «مَا بَسَطَ عَبْدٌ يَدَيْهِ إِلَى اَللَّهِ عَزَّ وَ جَلَّ إِلاَّ وَ اِسْتَحَى اَللَّهُ أَنْ يَرُدَّهَا صِفْراً حَتَّى يَجْعَلَ فِيهَا مِنْ فَضْلِهِ وَ رَحْمَتِهِ مَا يَشَاءُ فَإِذَا دَعَا أَحَدُكُمْ فَلاَ يَرُدَّ يَدَيْهِ حَتَّى يَمْسَحَ بِهِمَا عَلَى رَأْسِهِ وَ وَجْهِهِ» وَ فِي خَبَرٍ آخَرَ «عَلَى وَجْهِهِ وَ صَدْرِهِ.
Hadith.953 - Imam Muhammad ibn Ali Al-Baqir (as) said:
"Whenever a servant extends their hands to Allah (swt), Allah (swt) feels shy to return them empty without placing in them something of His grace and mercy, as He wills. Therefore, when any of you supplicates, do not retract your hands until you have wiped them over your head and face."
In another narration, it is mentioned: "over your face and chest."