Mbh 12.66.2c

Inviting to this home, O Bharata, persons that have betaken themselves to that Vanaprastha and other modes of life, and treating them with food, constitute the domestic duties of a king. That king who duly adheres to the duties laid down by the Creator, obtains the blessed merits of all the modes of life. That king, O son of Kunti, in whom no virtue is wanting, that foremost of men, O Yudhishthira, is said by the learned to be a person in the observance of the Vanaprastha and all the other modes of life. That king who duly honours the office or rank which deserves honour, the race or family which deserves honour, and those old men that deserve honour is said, O Yudhishthira, to live in all the modes of life.[208] A king, O son of Kunti, by observing the duties of his country and those of his family, acquires, O tiger among men, the merits of all the modes of life. That king who at proper seasons bestows upon righteous persons affluence or gifts of value, earns the merits, O king, of all the modes of life. That king, O son of Kunti, who while overcome with danger and fear still keeps his eye on the duties of all men,[209] earns the merits of all the modes of life. The king obtains a share of the merits earned under his protection by righteous people in his dominions. On the other hand, if kings, O tiger among men, do not protect the righteous people within their dominions, they then take the sins of the latter (of omission and commission). Those men also, O Yudhishthira, who assist kings (in protecting their subjects), become equally entitled, O sinless one, to a share of the merits earned by others (in consequence of that protection). The learned say that the Garhasthya, which we have adopted, is superior to all the other modes of life. The conclusions in respect of it are very clear. It is certainly sacred, O tiger among men.