The word(s) "sly" appears 5 time(s) in 5 verse(s) in Quran in Muhammad Pickthal translation.

(1) Prove orphans till they reach the marriageable age; then, if ye find them of sound judgment, deliver over unto them their fortune; and devour it not by squandering and in haste lest they should grow up Whoso (of the guardians) is rich, let him abstain generously (from taking of the property of orphans); and whoso is poor let him take thereof in reason (for his guardianship). And when ye deliver up their fortune unto orphans, have (the transaction) witnessed in their presence. Allah sufficeth as a Reckoner.

(2) And Allah would turn to you in mercy; but those who follow vain desires would have you go tremendously astray.

(3) In truth thy Lord destroyed not the townships tyrannously while their folk were doing right.

(4) And when she heard of their sly talk, she sent to them and prepared for them a cushioned couch (to lie on at the feast) and gave to every one of them a knife and said (to Joseph): Come out unto them! And when they saw him they exalted him and cut their hands, exclaiming: Allah Blameless! This is no a human being. This is not other than some gracious angel.

(5) Must ye needs lust after men instead of women? Nay, but ye are folk who act senselessly.