Narrated 'Abdullah bin Abi Qatadah: From his father, that the Messenger of Allah ﷺ said: "When one of you drinks, then do not breathe into the vessel". Abu 'Eisa said: This Hadith is Hasan Sahih.
This hadith also teaches us about being considerate of others by following proper etiquette when we are engaging with them or using items that belong to them or are shared among many people such as cups or glasses at a gathering or party. We must always remember to be respectful of other people’s belongings and take care of them as if they were our own in order to show kindness towards those around us.