Eating Hadith
• Not breathing or blowing into the cup
Authentic
نَهَى رَسُولُ اللَّهِ صلى الله عليه وسلم أَنْ يُتَنَفَّسَ فِي الإِنَاءِ أَوْ يُنْفَخَ فِيهِ
Naha rasulullahi sallallahu alayhi wa sallama an yutanaffasa fil-ina'i aw yunfakha fih.
"The Messenger of Allah (ﷺ) forbade breathing into the vessel or blowing into it."
Narrated by: Abdullah ibn Abbas
Jami at-Tirmidhi 1888, Abu Dawud 3728