Above all, he charged him to take alforjas with him.

The other said he would, and that he meant to take also a very good ass he had, as he was not much given to going on foot.

About the ass, Don Quixote hesitated a little, trying whether he could call to mind any knight-errant taking with him an esquire mounted on ass-back, but no instance occurred to his memory.

For all that, however, he determined to take him, intending to furnish him with a more honourable mount when a chance of it presented itself, by appropriating the horse of the first discourteous knight he encountered.
Himself he provided with shirts and such other things as he could, according to the advice the host had given him; all which being done, without taking leave, Sancho Panza of his wife and children, or Don Quixote of his housekeeper and niece, they sallied forth unseen by anybody from the village one night, and made such good way in the course of it that by daylight they held themselves safe from discovery, even should search be made for them.
Sancho rode on his ass like a patriarch, with his alforjas and bota, and longing to see himself soon governor of the island his master had promised him.

Don Quixote decided upon taking the same route and road he had taken on his first journey, that over the Campo de Montiel, which he travelled with less discomfort than on the last occasion, for, as it was early morning and the rays of the sun fell on them obliquely, the heat did not distress them.
And now said Sancho Panza to his master, "Your worship will take care, Senor Knight-errant, not to forget about the island you have promised me, for be it ever so big I'll be equal to governing it." To which Don Quixote replied, "Thou must know, friend Sancho Panza, that it was a practice very much in vogue with the knights-errant of old to make their squires governors of the islands or kingdoms they won, and I am determined that there shall be no failure on my part in so liberal a custom; on the contrary, I mean to improve upon it, for they sometimes, and perhaps most frequently, waited until their squires were old, and then when they had had enough of service and hard days and worse nights, they gave them some title or other, of count, or at the most marquis, of some valley or province more or less; but if thou livest and I live, it may well be that before six days are over, I may have won some kingdom that has others dependent upon it, which will be just the thing to enable thee to be crowned king of one of them.