Musannaf Ibn Abi Shaybah 23619 — Trade and the desire for it

Muhammad bin Wasi' al-Azdi (may Allah have mercy on him) said: "This wealth is lawful only in four cases: if it is a share of the spoils of the Muslims, or from trade in lawful goods, or a gift that a Muslim brother gives willingly, or from one's share of inheritance as prescribed by Allah."