[Machine] The Messenger of Allah ﷺ said, "None of you should touch his hand until he licks it or it is licked."  

قَالَ رَسُولُ اللهِ ﷺ «لَا يَمْسَحْ أَحَدُكُمْ يَدَهُ حَتَّى يَلْعَقَهَا أَوْ يُلْعِقَهَا»