<Li> A player cannot run with the ball . The player must throw it from the spot on which he catches it, allowance to be made for a man who catches the ball when running at a good speed if he tries to stop . </Li> <Li> The ball must be held in or between the hands; the arms or body must not be used for holding it . </Li> <Li> No shouldering, holding, striking, pushing, or tripping in any way of an opponent . The first infringement of this rule by any person shall count as a foul; the second shall disqualify him until the next basket is made or, if there was evident intent to injure the person, for the whole of the game . No substitution shall be allowed . </Li> <Li> A foul is striking at the ball with the fist, violation of rules three and four and such described in rule five . </Li>

2011 official rules of the nba page 21