Imam Husain (A.S.) at the Grave of the Holy Prophet (S.A.W.)

It is said that one night (before departure) Imam Husain (A.S.) stepped out of his house and went to the head of the grave of his grandfather the Holy Prophet (S.A.W.) and said.
"Salutations be upon you O Prophet of Allah (S.A.W.)! I am Husain (A.S.) the son of Fatimah (A.S.). I am your beloved and the child of your beloved. I am your son whom you have left as your heir among your ummah. Thus O Prophet of Allah (S.A.W.)! Be a witness that these people have deserted me and neglected me while refusing to protect me. This is my complaint to you until I come to your presence."
Then he arose and started reciting the Prayers, constantly bowing and prostrating. Waleed went to his house to inquire whether the Imam (A.S.) had left Madinah or not. When he saw that the Imam (A.S.) was not there he said, "Thanks to Allah that he has left and I have been saved from being indicted and involved in spilling his blood." Then Imam (A.S.) returned back to his home and on the second night he again went to the grave of the Holy Prophet (S.A.W.) and recited some units of Prayers. After finishing the Prayers he said,
"O Allah! This is the grave of Your Prophet (S.A.W.), and I am the grandson of Your Prophet (S.A.W.). You are aware as to what has befallen me. Verily I cherish virtue and righteousness and abhor evil. O Lord of Glory and Honour! I adjure You by the right of this grave and the one who is buried therein, to bring forth for me that which is approved by You and Your Prophet."
Imam (A.S.) continued weeping until the morning, then he placed his head on the grave and slept for a short time. He dreamt that the Holy Prophet (S.A.W.), surrounded by the angels from the left, right and front, coming towards him. The Holy Prophet (S.A.W.) came near and pressed Imam Husain (A.S.)'s head to his chest. Then he kissed him between his eyes and said,
"O my beloved Husain (A.S.)! It is as if I see you smeared in blood at the place of grief and trials, and a group from among my people have beheaded you, and you are thirsty while they do not quench your thirst. In spite of this they desire my intercession (on the day of Qiyamah). May Allah keep them away from my intercession? O my beloved Husain (A.S.)! Your Father, Mother and Brother have come to me and they are desirous of meeting you. And you have acquired such a lofty position in Paradise, that unless you attain Martyrdom you shall not get there."
Imam (A.S.) looked at his Holy Grandfather (S.A.W.) and said,
"O Grandfather (S.A.W.)! I do not desire to return back to this world. Please take me along with you and enter me into your grave."
The Holy Prophet (S.A.W.) replied,
"You should return back (towards the world) and attain martyrdom, and thus gain whatever great rewards Allah has reserved for you. For on the day of Qiyamah, you, your Father, your Uncle and Yours Father's Uncle shall arise as a distinguished group until you all enter Paradise."