Ulupi said : O son of Pandu, I know why you are roaming over the world and why you observe Brahmacharya at the command of your elder (brother).
उलूप्युवाच जानाम्यहं पाण्डवेय यथा चरसि भेदिनीम्। यथा च ते ब्रह्मचर्यमिदमादिष्टवान् गुरुः॥