Kagiso Rabada was allowed to continue for the rest of the series vs Australia after his two-match suspension was reversed.
Rabada, who took 11 wickets in the second Test in Port Elizabeth, has successfully appealed against a ban.
Kagiso Rabada was found not guilty of making deliberate physical contact with any player.
Rabada's case will be heard by New Zealand judicial commissioner Michael Heron on Monday, with a verdict due to be announced within 48 hours.
Rabada was found guilty of a level two offence for making shoulder contact with Australian captain Steve Smith in the second Test in Port Elizabeth.
Harris dragged Kohli's name in the conversation after pacer Kagiso Rabada was suspended by the International Cricket Council (ICC) for two Tests.
Rabada was found guilty of "inappropriate and deliberate physical contact with a player" after leaning with his shoulder into Steve Smith after dismissing the Australian skipper last week.
Kagiso Rabada has been suspended for South Africa's next two Test matches.
Kagiso Rabada has been suspended for the remaining two Test matches of the South Africa-Australia series.
Rabada has accepted a second charge under 2.1.7 of the code.
Kagiso Rabada put aside his disciplinary concerns to set up a series-levelling win for South Africa on the fourth day of the second Test against Australia at St George's Park on Monday.
Kagiso Rabada was already facing censure for his behaviour after Steve Smith's dismissal in the first inning.
Kagiso Rabada struck shortly before the close to restore South Africa's ascendancy on the third day of the second Test against Australia at St George's Park on Sunday.
AB de Villiers counter-attacked to hit 74 not out off 81 balls with easily the most aggressive batting of an otherwise slow day.
The masks were likely to have been worn to taunt Australian batsman David Warner, whose wife reportedly had an encounter with Williams in 2007 before meeting Warner.
Rabada shouted in celebration and approached Smith aggressively after winning a leg before wicket decision against him and the shoulders of the players made contact.
Kagiso Rabada took four wickets in seven balls to help bowl out Australia for 243.
David Warner was fined 75 percent of his match fee and given three demerit points following a bust-up with South Africa's Quinton de Kock as the players went to the dressing rooms at the tea interval on day four.