(5) باب التَّيَمُّمُ لِلْوَجْهِ وَالْكَفَّيْنِ
Narrated `Abdur Rahman bin Abza:
`Ammar said to `Umar "I rolled myself in the dust and came to the Prophet (ﷺ) who said, 'Passing dusted hands over the face and the backs of the hands is sufficient for you.' "
Reference: Sahih al-Bukhari 341
In-book reference: Book 7, Hadith 8
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 1, Book 7, Hadith 337