2 verses have
akhaafu
in Edition English Transliteration / Al-Qasas (The Stories)

28:33Qaala Rabbi innee qataltu minhum nafsan fa akhaafu ai yaqtuloon

28:34Wa akhee Haaroonu huwa afsahu minnee lisaanan fa arsilhu ma'iya rid ai yusaddiquneee innee akhaafu ai yukazziboon