The Book of Purification
Bulugh al-Maram #157
كتاب الطهارة
وَفِي رِوَايَةٍ لِلْبُخَارِيِّ: وَضَرَبَ بِكَفَّيْهِ اَلْأَرْضَ, وَنَفَخَ فِيهِمَا, ثُمَّ مَسَحَ بِهِمَا وَجْهَهُ وَكَفَّيْهِ
In a version by Al-Bukhari, `Ammar said:
'He (ﷺ) struck the earth with the palms of his hands, blew in them and wiped his face and hands with them.
وَفِي رِوَايَةٍ لِلْبُخَارِيِّ: وَضَرَبَ بِكَفَّيْهِ اَلْأَرْضَ, وَنَفَخَ فِيهِمَا, ثُمَّ مَسَحَ بِهِمَا وَجْهَهُ وَكَفَّيْهِ
'He (ﷺ) struck the earth with the palms of his hands, blew in them and wiped his face and hands with them.
— Bulugh al-Maram, Hadith 157