It would have been enough for you to strike the ground with you hands and then wipe them your face and your hands (up to the wrists). He then narrated the rest of the tradition. Abu Dawud said: This is also transmitted by Shu'bah from Husain on the authority of Abu Malik. He said: I heard 'Ammar saying so him his speech, except that in this version he added the words: "He blew." And Husain b. Muhammad narrated from Shu'bah on the authority of al-Hakam and in this version added the words:"He (the Prophet) struck the earth with his plans and blew."
يَعْنِي النَّبِيَّ ﷺ إِنَّمَا كَانَ يَكْفِيكَ أَنْ تَضْرِبَ بِيَدَيْكَ إِلَى الأَرْضِ فَتَمْسَحَ بِهِمَا وَجْهَكَ وَكَفَّيْكَ وَسَاقَ الْحَدِيثَ