Imam Baqir (A.S.) said:
Amirul Mu'mineen (A.S.), along with two of his companions, happened to pass by Kerbala and as he did so, tears filled his eyes. He said (to them), "This is the resting place of their animals; and this is where their luggage shall be laid down; and it is here that their blood shall be shed. Blessed are you O' Earth, that the blood of the beloved shall be spilled upon you."
Bihar al Anwar, vol: 98 pg. 258.