Dreaming of Nabi SAW

Assa la mualaykum
. A brother who’s financial situation is not good (who’s father has passed away,his in debts & not married) seen a dream that his mother (who is alive) is telling him that prophet Muhammad(peace be upon him) has told her to put her son(his younger brother) in to a darul uloom what should he do as financial situation not good & what does it mean?