The word(s) "reckoner" appears 4 time(s) in 4 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) Then are they restored unto Allah, their Lord, the Just. Surely His is the judgment. And He is the most swift of reckoners.

(3) (And it will be said unto him): Read thy Book. Thy soul sufficeth as reckoner against thee this day.

(4) And We set a just balance for the Day of Resurrection so that no soul is wronged in aught. Though it be of the weight of a grain of mustard seed, We bring it. And We suffice for reckoners.