Mencius - Book 3, Part 1, Chapter 3E

'I would ask you, in the remoter districts, observing the nine-squares division, to reserve one division to be cultivated on the system of mutual aid, and in the more central parts of the kingdom, to make the people pay for themselves a tenth part of their produce.

'From the highest officers down to the lowest, each one must have his holy field, consisting of fifty mâu.

'Let the supernumerary males have their twenty-five mâu.

'On occasions of death, or removal from one dwelling to another, there will be no quitting the district. In the fields of a district, those who belong to the same nine squares render all friendly offices to one another in their going out and coming in, aid one another in keeping watch and ward, and sustain one another in sickness. Thus the people are brought to live in affection and harmony.

'A square lî covers nine squares of land, which nine squares contain nine hundred mâu. The central square is the public field, and eight families, each having its private hundred mâu, cultivate in common the public field. And not till the public work is finished, may they presume to attend to their private affairs. This is the way by which the country-men are distinguished from those of a superior grade.

'Those are the great outlines of the system. Happily to modify and adapt it depends on the prince and you.'
~ James Legge translation via nothingistic.org ~

Go here to read the introductory post to this serialized version of the Works of Mencius.