peace z,
It likely refers to spreading the message or establishing the system elsewhere. I am currently reviewing the story of Abraham in its chronological sequence.
The following is a modification of the above post by progressive1993.
37:102 When he grew enough to work with him, he said, "My son, I am seeing in a dream that I am sacrificing you (i.e. giving you up) for a noble cause. What do you think?" He said, "O my father, do what you are commanded to do. You will find me, God willing, patient.
37:103 So when they both submitted (or became peaceful), and he (Abraham) brought him to his forehead.*
37:104 And We called to him: "O Abraham,
37:105 You have fulfilled the vision." It is such that We reward the doers of good.
37:106 Surely, this was a clear test.
37:107 We exchanged him with a tremendous sacrifice.
37:108 And we left for him among the later generations.
*Root: Ta-Lam-Lam: lay one down upon one's kin (neck/cheek/breast), or forehead in this case. This could be commonly done when one says goodbye to a loved one such as a son/daughter/etc.
Giving up one's son for a noble cause (e.g. spreading the message) is indeed an exacting test, and a tremendous sacrifice.
