Mbh 15.2.1a

"Vaisampayana said, 'Thus worshipped by the Pandavas, the royal son of Amvika passed his time happily as before, waited upon and honoured by the Rishis. That perpetuator of Kuru's race used to make those foremost of offerings which should be given to the Brahmanas. The royal son of Kunti always placed those articles under Dhritarashtra's control. Destitute of malice as king Yudhishthira was, he was always affectionate towards his uncle. Addressing his brothers and councillors, the king said, "King Dhritarashtra should be honoured both by myself and you all. He indeed, is a well-wisher of mine who is obedient to the commands of Dhritarashtra. He, on the other hand, who behaves otherwise towards him, is my enemy. Such a man should certainly be punished by me." On days of performing the rites ordained for the Pitris, as also in the Sraddhas performed for his sons and all well-wishers, the high-souled Kuru king Dhritarashtra, gave away unto Brahmanas, as each deserved, as profuse measures of wealth as he liked. King Yudhishthira the just, and Bhima, and Arjuna, and the twins, desirous of doing what was agreeable to the old king, used to execute all his orders. They always took care that the old king who was afflicted with the slaughter of his sons and grandsons,--with, that is, grief caused by the Pandavas themselves,--might not die of his grief. Indeed, the Pandavas bore themselves towards him in such a way that that Kuru hero might not be deprived of that happiness and all those articles of enjoyment which had been his while his sons lived. The five brothers, viz., the sons of Pandu, behaved themselves even thus towards Dhritarashtra, living under his command. Dhritarashtra also, seeing them so humble and obedient to his commands and acting towards him as disciples towards preceptors, adopted the affectionate behaviour of a preceptor towards them in return.