Laws of Cricket 1947 Code (Fourth Edition) - Law 4
All runs scored shall be recorded by scorers appointed for the purpose; the scorers shall accept and acknowledge all instructions and signals given to them by the umpires.
Note on Law 4
1. The umpires should wait until a signal has been answered by a scorer before allowing the game to proceed. Mutual consultation between the scorers and the umpires to clear up doubtful points is at all times permissible.
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