Pakistan lost their first match against West Indies by seven wickets and would look to make amends today.
England have risen to the top of the ODI rankings since their woeful first-round exit at the 2015 edition mainly as a result of piling on the runs.
England, 2-0 up with two games to play in this five-match series, made five changes from the side that beat Pakistan by six wickets in Bristol on Tuesday in another day/night clash.
According to an ICC statement, the suspension means Morgan will miss the fourth ODI against Pakistan in Nottingham on Friday.
Man-of-the-match Buttler's innings featured nine sixes, including a straight drive off Hasan Ali that took him to three figures.
The Green Army had just one win in their first five matches before legendary skipper Imran Khan asked his side to fight like 'Cornered Tigers'. The rest is history...
The 37-year-old is the senior most player in Pakistan's 15-member World Cup squad with the experience of 282 ODIs and 111 T20 internationals to his name.
England fast bowler Jofra Archer also continued his push for a World Cup call-up by taking two for 29 in Pakistan's innings.
Malik is part of the Pakistan squad currently in England to play the World Cup hosts in a five-match ODI series ahead of the game's showpiece event starting May 30.