Correct
集腋成裘
/ jí yè chéng qiú /
Strokes
Definition
many hairs make a fur coat (idiom); many small contributions add up to sth big/many a mickle makes a muckle
Example
Definition
the finest fragments of fox fur, sewn together, will make a robe―many a little makes a mickle; many littles make a great deal; many little drops of water make an ocean