No Ball — Law 21 (MCC Laws of Cricket 2017 Code, 6th Edition)

A no-ball is called by the umpire and results in one penalty run to the batting side plus the delivery must be re-bowled. A no-ball is called when: Front foot no-ball (Law 21.4): Any part of the bowler's front foot lands on or in front of the popping crease at the point of delivery (the foot need...

Source: Law 21.4, Law 21.5, Law 41.6, Law 21.3, Law 28.5

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