He was referring to frequent comments by Australian cricketers about the limits of acceptable behaviour and "not crossing the line".
Australia's Fox Sports reported that Warner was seen drinking champagne in a hotel bar in Cape Town earlier this week with non-cricket friends while the investigation into one of the most damaging scandals in Australian sport was underway.
Warner was captain of the Hyderabad Sunrisers while Smith was meant to skipper the Rajasthan Royals side.
London:Former Australian captain Steve Waugh urged everyone to have a "focused and balanced perspective" in the ongoing ball tampering scandal that has rocked Australian cricket with their current captain Steve Smith facing a hefty suspension from the Cricket Board.
Their ban also ruled out participation for the pair in this year's Indian Premier League but minutes before the Australian sanctions were handed down, the IPL announced neither would be welcome this year. "David Warner will not be considered for team leadership positions in the future", the Cricket Australia statement revealed.
Former Test players Matthew Renshaw, Glenn Maxwell and Joe Burns are heading to South Africa to replace the demoted trio for the fourth and final Test in Johannesburg.
Media reports stated that the three players have a week to appeal against the sanctions.
Cricket Australia chairman David Peever said: "The CA board understands and shares the anger of fans and the broader Australian community about these events". The players previously said Bancroft used a piece of yellow adhesive tape covered with dirt to rub on the ball. He was filmed with the tape and trying to hide it down the front of his pants.
He said after the Test that the Australia team's "leadership group" had been aware of the plan.
However, Sutherland insisted Lehmann was not involved.More news: Melania looks untroubled by claims of Trump affairs
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Sutherland indicated that the three players could expect tough penalties in the "next 24 hours" over the incident last Saturday.
"I am satisfied that Darren Lehmann was not involved and didn't know anything about the plan", Sutherland added. "Cape Town change room is a very small place!", Michael Clarke wrote on Twitter.
A few months ago he had led Australia to a 4-0 Ashes rout of England with a series of dazzling performances with the bat.
As per the punishment handed out, the players have been banned from all elite Australian cricket, although they can play grade cricket.
South Africa are seeking a first home series win over the Australians since 1970 and will be heavy favourites as they take their settled squad into the fixture against a touring side in chaos.
Meanwhile, LG has confirmed it will not renew its soon-to-expire deal with Warner.
He will not be allowed to captain Australia for two years, and even then, any return will depend on various factors, including public sentiment and that of the team. "The three Australians made a mistake and have had to pay the price for it".
Clark, one of the mainstay quicks of the Ricky Ponting captaincy era, said the infamous incident will always be with them but forgiveness from the public needs to part of the process.
Smith is reportedly distraught and support is being offered to help him cope.