Sa'id b. Zaid reported God’s Messenger as saying, “If anyone takes a span of land unjustly, its extent taken from seven earths will be tied round his neck on the day of resurrection.”
Hakim b. Hizam said God's Messenger sent him with a dinar to buy a sacrificial animal for him. He bought a sheep for a dinar, sold it for two, came back, bought a sacrificial animal for a dinar, and brought it along with the extra dinar which he had gained. God’s Messenger gave the dinar as sadaqa and asked a blessing on him in his trading.
Ibn ‘Umar reported God’s Messenger as saying, “No one must milk a man’s animal without his permission. Would any of you like his upper chamber to be entered, his treasury broken into, and his food taken away? The udders of their animals store up their food for them.”