In the first part of the 6th Sandhi of Ādiparva, Vaiśampāyana narrates to Janamejaya the favorite games that were played between the hundred Kaurava-s and the five Pāṇḍava-s in the outskirts of their palace.

Bhīma, the strongest of them all, used to playfully taunt the Kaurava-s and deliberately pester them. During the rough-play, the Kaurava-s would be at the receiving end of Bhīma’s blows due to which they would repeatedly complain to Bhīṣma and Dhṛtarāṣṭra. While Bhīma did this, he did not have any bad intentions against the Kaurava-s. It was fun and games for him. But Duryodhana took offense to Bhīma-s behaviour. This resulted in Kaurava-s trying to kill Bhīma using various methods – they tried drowning him, they tried getting him bitten by poisonous serpents, they fed him food laced in poison. However, Bhīma survived every attempt, and vowed to kill them all.

Bhīṣma realized that if this rivalry was left unattended, it would consume the entire family. Thus, Bhīṣma decided to keep the boys busy by finding a suitable teacher who could teach them the use and practice of Śastra-s and Astra-s.

Audio link: https://archive.org/download/kumaravyasa-bharata-recitation/Parva-01-Adiparva-006-Sandhi-Part-01-of-03.mp3