Dharmaputra had till then believed that Kunti was accompanying Gandhari only for a distance to say goodbye. When he heard her speak thus, he was taken aback and was speechless for a few minutes. When he recovered from the shock he said: "Mother, not thus! You blessed us and sent us to battle. It is not right you should now desert us and go to the forest." Yudhishthira's entreaties were however of no avail. Kunti held to her purpose. MB 104 (Mahabharata Retold By C. Rajagopalachari) http://www.krishnapath.org/library/mahabharata-free-download/