Abu Dawud reported something similar from Ibn 'Abbas (RA) and he added:

"or blow into it," [at-Tirmidhi graded it Sahih (authentic)].

وَلِأَبِي دَاوُدَ : عَنْ اِبْنِ عَبَّاسٍ نَحْوُهُ , وَزَادَ : { أَوْ يَنْفُخْ فِيهِ } وَصَحَّحَهُ اَلتِّرْمِذِيُّ [1]‏ .‏