Sunan Abi Dawud, Book 1, Hadith 325 (USC-MSA)

This is transmitted by Shu'bah through a different chain of narrators. This version adds: He ('Ammar) said: He (the Prophet) then blew it and wiped with it his face and hands up to elbows or up to the forearms. Shu'bah said: Salamah used to narrate (the words) "the hands and the face and the forearms". One day Mansur said to him: Look, what are you saying, because no one except you mentions the (word) "forearms".

حَدَّثَنَا عَلِيُّ بْنُ سَهْلٍ الرَّمْلِيُّ، حَدَّثَنَا حَجَّاجٌ، - يَعْنِي الأَعْوَرَ - حَدَّثَنِي شُعْبَةُ، بِإِسْنَادِهِ بِهَذَا الْحَدِيثِ قَالَ ثُمَّ نَفَخَ فِيهَا وَمَسَحَ بِهَا وَجْهَهُ وَكَفَّيْهِ إِلَى الْمِرْفَقَيْنِ أَوْ إِلَى الذِّرَاعَيْنِ ‏.‏ قَالَ شُعْبَةُ كَانَ سَلَمَةُ يَقُولُ الْكَفَّيْنِ وَالْوَجْهَ وَالذِّرَاعَيْنِ فَقَالَ لَهُ مَنْصُورٌ ذَاتَ يَوْمٍ انْظُرْ مَا تَقُولُ فَإِنَّهُ لاَ يَذْكُرُ الذِّرَاعَيْنِ غَيْرُكَ ‏.‏

sunnah.com