Pakistan have decided not to complain about the behaviour of South Africa's Andrew Hall after earlier indicating they would press for sanctions.
Hall clashed with Yousuf Youhana who was batting in the 13th over of Pakistan's innings on Sunday.
The batsman exchanged words before Hall seemed to elbow Youhana in the side.
Hall then confronted him, touching his bat and thrusting his face in Youhana's, who responded angrily before umpire Nadeem Ghouri stepped in.
The other umpire, Australia's Darrell Hair, cautioned both players.
On Sunday, Pakistan cricket board (PCB) chairman Lieutenant-General Tauqir Zia and chief executive Rameez Raja said the Pakistan team would be filing a complaint with match referee Clive Lloyd.
But PCB sources said the Pakistani team management had changed its mind to avoid bad blood with the South Africans.
Pakistan captain Inzamam-ul-Haq said: "I don't want to comment on it but we have decided not to lodge any complaint with the match referee and it is a team decision."
"We just want to concentrate on the series and if the match referee wants to take action he can take action. Everyone has seen it on television."
Pakistan enjoyed a comfortable 42-run victory on Sunday after an eight-run success in the first match of the best-of-five series on Friday.
But although Pakistan themselves are keen for the matter to go no further, the ICC have their own responsibilities.
Chief Executive Malcolm Speed, is waiting for a full report from the match officials and footage of the incident before deciding if any charges should be laid.
"This footage will be with us by close of business on Wednesday night," he said.
"Once it is received, we will be in a better position to determine what, if any, action should be taken."
Source: BBC Sports