Two things are reported in this Hadith. The narrator forgets which of the two has been uttered by Messenger of Allah (PBUH). If it is the first, it means that a believer who saw Messenger of Allah (PBUH) in a dream would also see him on the Day of Resurrection. In a sense it verifies the veracity of the believer. In the case of the second, the sense is clear. Yet, Satan may also appear in a believer's dream under a saintly guise and put him into delusion that he has seen Messenger of Allah (PBUH). Every Muslim, therefore, is required to know the identity and features of Messenger of Allah (PBUH) so that Satan may not deceive him.