South Africa's Faf du Plessis has been fined for "changing the condition of the ball" during the second Test against Pakistan.
The all-rounder must hand over half his match fee after he was summoned before match referee David Boon ahead of the fourth day's play in Dubai.
Du Plessis pleaded guilty to the charge on Friday evening after television replays appeared to show him rubbing the ball close to the zip on his trouser pocket.
But a statement from Boon, a member of the International Cricket Council's elite panel of referees, cleared the player of deliberate ball-tampering.
It read: "After discussions with Mr du Plessis, he has elected not to contest the charge, but I am also satisfied that this was not part of a deliberate and/or prolonged attempt to unfairly manipulate the condition of the ball.
"The imposition of a fine of 50% of his match fee is appropriate considering the circumstances."
On-field umpires Rod Tucker and Ian Gould brought the charge and penalised South Africa five runs on Friday when they were forced to change the ball during Pakistan's second innings.
Meanwhile, Pakistan off-spinner Saeed Ajmal has been reprimanded after pleading guilty to insulting Gould after taking the wicket of Morne Morkel.
Gould had turned down an appeal for a catch in Ajmal's previous over, and the spinner appealed repeatedly after having Morkel caught in the slips.
An ICC statement confirmed that Ajmal was cautioned for "using language or a gesture that is obscene, offensive or insulting during an international match.
"The bowler's actions after taking the wicket was considered insulting towards the umpire."