Hard-won, self-acquired, self-earned property! Do you mean the property of the petty artisan and the small peasant, a form of property that preceded the bourgeois form? There is no need to abolish that; the development of industry has to a great extent already destroyed it, and is still destroying it daily.
Signet Classics edition of The Communist Manifesto, by Karl Marx and Friedrich Engels, with an Introduction by Martin Malia and a New Afterword by Stephen Kotkin, p 83