Surah Aali Imran (The Family of Imran), Verse 75

وَمِنْ اَهْلِ الْكِتٰبِ مَنْ اِنْ تَاْمَنْهُ بِقِنْطَارٍ یُّؤَدِّهٖۤ اِلَیْكَ وَمِنْهُمْ مَّنْ اِنْ تَاْمَنْهُ بِدِیْنَارٍ لَّا یُؤَدِّهٖۤ اِلَیْكَ اِلَّا مَا دُمْتَ عَلَیْهِ قَآىِٕمًا ذٰلِكَ بِاَنَّهُمْ قَالُوْا لَیْسَ عَلَیْنَا فِی الْاُمِّیّٖنَ سَبِیْلٌ وَیَقُوْلُوْنَ عَلَی اللّٰهِ الْكَذِبَ وَهُمْ یَعْلَمُوْنَ ۟

Wa min Ahlil Kitaabi man in ta'manhu biqintaariny yu'addihee ilaika wa minhum man in ta'manhu bi deenaarin laa yu'addiheee ilaika illaa maa dumta 'alaihi qaaa' imaa; zaalika biannahum qaaloo laisa 'alainaa fil ummiyyeena sabeelunw wa yaqooloona 'alal laahil kaziba wa hum ya'lamoon

“Among the People of the Book are some who, if entrusted with a hoard of gold, will (readily) pay it back; others, who, if entrusted with a single silver coin, will not repay it unless thou constantly stoodest demanding, because, they say, "there is no call on us (to keep faith) with these ignorant (Pagans)." but they tell a lie against Allah, and (well) they know it.”

Quran 3:75 (Yusuf Ali Translation)