Visiting the blessed grave is nothing but prosperity
Imam Qustullani, the interpreter of Sahih Bukhari has written in Al Mawahib Al Ladunniya:
Translation: It has been narrated on the authority of Hadhrat Hasan Basri (May Allah shower His mercy on him), he says: Hadhrat Hatim Asamm (May Allah shower His mercy on him) went to the sanctuary of the Holy Prophet (Sallallahu alaihi wa sallam) and prayed: O Allah! We have come to the door of Your beloved Prophet (Sallallahu alaihi wa sallam), don’t return us empty handed. He heard a voice: If we didn’t want to accept you, we wouldn’t have given you the chance to come here at all. You will return in such a state that We have forgiven you and with you, all others who visited. (Mawahib Al Ladunniya, Vol. 12, Pg. No. 200)