In this Hadeeth, the Prophet ﷺ underlined some guidelines for the Islamic etiquette of speech that instillshumility within Muslims’ hearts. He ﷺ highlighted the proper titles that should be used when masters and slaves address one another. He ﷺ forbade slave-owners to address their slaves or those owned by others using the title ‘lord’ in reference to a master or slave-owner, saying, ‘Feed your lord (Rabbaka), help your lord in performing ablution, or give water to your lord,’ and instructed them to rather use the title master (Saiyyid) or guardian (Mawlaa). Moreover, he ﷺ forbade slave-owners to address their slaves saying, “my slave (‘Abdee), or my girl-slave (Amatee),” because absolute servitude is exclusive to Allah, Exalted is He, “but should say, my lad (Fatayaa), my lass (Fataatee), and my boy (Ghulaamee).” The wisdom behind the prohibition is this regard is that human beings are required to devote their worship exclusively to Allah, Exalted is He, their One and Only Lord, and to refrain from associating any partners with Him, and therefore it is disliked to address someone as ‘lord’, lest one should fall into Shirk (i.e., associating partners with Allah). There is no difference in the relevant ruling when the addressee is a slave or a free man. As for what is not taken as an object of worship, such as animals and inanimate objects, it is not disliked to refer to their owner as ‘Rabb,’ which literally means lord, like saying the lord of the house for instance. As for the fact that the title Rabb was used in His Saying (which means): {"Mention me before your Rabb (lit., lord)."} [Quran 12:42], and His Saying {Return to your Rabb (lit., lord).} [Quran 12:50], it was used to indicate the permissibility of using the title, and the prohibition in this hadeeth aims to urge Muslims to adhere to the becoming Islamic etiquette of speech and (graciously refrain from using it since), being a non-prohibitively disliked act rather than forbidden. It could also mean that a Muslim is forbidden from the excessive and habitual use of such titles, but it does not indicate deeming it strictly forbidden when used occasionally. It is deduced from the hadeeth that a Muslim is required to abide by the Islamic etiquette of speech even if the wording does not involve any violation of the Laws of Islam..