One day, in the morning, when The Sun was rising, the horse arrived in Vaalmeeki's Aashram on the banks of Gangaa River. Sita's son, Lav went to bring Samidhaa for morning Havan. There he saw the Yagya horse Lav to other Muni's sons - "Whose horse is this who has come to our Aashram? Let us go and see him. Do not be afraid."
Lav went to that horse and read the letter tied to his forehead. He opened it and read it. He got angry reading it.
Lav - "See his bravery, who has described himself in this letter. What is Raam? What is Shatrughn? Is it only Raam and Shatrughn who are born in Kshatriya family? Are we not Kshatriya?"
Thus Lav caught the horse and got ready to fight taking his bow and arrow.
Munis' sons tried to explain him - "Listen, Ayodhyaa's king Raam is very powerful. Even Indra cannot touch His horse, so better you leave this horse alone."
Hearing this Lav said - "You are Braahman's sons, you don't know the might of Kshatriya. Kshatriyas are famous for their might and Braahman are famous to eat food. Go and eat food offered by your mothers."
Munis' sons got silent at this and stood away from him. In the meantime Shatrughn's soldiers came there and seeing their horse tied there asked Lav
Soldiers- "Who has tied this horse here? On whom Yam Raaj is angry today?"
Lav said - "I have tied him here. Whoever will come to take it, my elder brother Kush will be angry at him."
Hearing Lav the soldiers thought, "He is only a child. We should not pay any attention to him." so they proceeded to free the horse. Seeing this Lav cut their arms. They went from there crying and told everything to Shatrughn."