-->
Lit., "this, because they say". In Arabic usage, the verb qala (lit., "he said") often signifies "he asserted" or "expressed an opinion". As is evident from many Traditions, the people referred to are the Jews.
I.e., they falsely claim that God Himself has exempted them from all moral responsibility towards non-Jews (contemptuously described as "unlettered folk"), knowing well that their own scriptures provide no basis whatever for such a claim.
“Gentiles” here refers to the pagans of Arabia.
Hoard of gold: qintar: a talent of 1,200 ounces of gold. See iii. 14. n. 354.
Silver coin: dinar. In the later Roman Empire, the denarius was a small silver coin. It must have been current in Syria and the markets of Arabia in the time of the Prophet. It was the coin whose name is translated in the English Bible by the word penny. Matt. xxii, 19: hence the abbreviation of penny is d (= denarius). The later Arabian coin dinar coined by the Umaiyads, was a gold coin after the pattern of the Byzantine (Roman) denarius aureus and weighed about 66349 grains troy, just a little more than a half-sovereign.
Every race imbued with race arrogance resorts to this kind of moral or religious subterfuge. Even if its members are usually honest or just among themselves, they are contemptuous of those outside their circle, and cheat and deceive them without any qualms of conscience. This is a "lie against Allah."