4 verses have
quloobuhum
in Edition English Transliteration / At-Tawba (The Repentance)

9:8Kaifa wa iny-yazharoo 'alaikum laa yarquboo feekum illanw wa laa zimmah; yurdoo nakum biafwaahihim wa taabaa quloobuhum wa aksaruhum faasiqoon

9:45Innamaa yastaazinukal lazeena laa yu'minoona billaahi wal Yawmil Aakhiri wartaabat quloobuhum fahum fee raibihim yataraddadoon

9:60Innamas sadaqaatu lilfuqaraaa'i walmasaakeeni wal 'aamileena 'alaihaa wal mu'al lafati quloobuhum wa fir riqaabi walghaarimeena wa fee sabeelil laahi wabnis sabeeli fareedatam minal laah; wal laahu 'Aleemun Hakeem

9:110Laa yazaalu bunyaanu humul lazee banaw reebatan fee quloobihim illaaa an taqatta'a quloobuhum; wal laahu 'Aleemun Hakeem