Aslam

Praise be to Allah.If the cousins are male and female and are young and

have not reached the age where they could feel desire and temptation, then there is no

harm in their playing together. If they are older, then it is forbidden because cousins

are not Mahrams (close relatives whom one is permanently forbidden to marry and with whom

the rules of hijaab and segregation are relaxed). Cousins are ‘Ajaanib or strangers

(non-Mahrams) to the daughters of their paternal uncles (father’s brothers) and

maternal uncles (mother’s brothers). And Allaah knows best.