Assalamu Alaikum Brothers in Islam,
Regarding etiquettes of eating :
It was narrated from Ibn ‘Abbas that the Prophet (ﷺ) said: “When one of you eats food, let him not wipe his hand until he has licked it or has someone else to lick it.”(ibn Majah)
What does the part "or has someone else to lick it" mean? In what context can this be understood? How can it be lawful to lick another person's finger? Please clarify this.