The word(s) "slit" appears 2 time(s) in 2 verse(s) in Quran in Abdullah Yusuf Ali translation.

(1) "I will mislead them, and I will create in them false desires; I will order them to slit the ears of cattle, and to deface the (fair) nature created by Allah." Whoever, forsaking Allah, takes satan for a friend, hath of a surety suffered a loss that is manifest.

(2) It was not Allah who instituted (superstitions like those of) a slit-ear she-camel, or a she-camel let loose for free pasture, or idol sacrifices for twin-births in animals, or stallion-camels freed from work: It is blasphemers who invent a lie against Allah; but most of them lack wisdom.