Q&A: Fasting - Masturbation

Answer

If you knew in the beginning that masturbation is haram and that it invalidates fasting, you should observe qadha and give kaffara. The kaffara is to either feed sixty poor and needy Shia people or fast for sixty days (31 days in a row). If you did not know the hukm (ruling) and masturbated due to inculpable (innocent) ignorance, your fast is in order and qadha is not necessary.

Answer

If a person masturbates with the intention of ejaculating and actually ejaculates, his fast is rendered invalid and he must make it up by way of qadha as well as pay the penalty (kaffara) which is fasting for two successive months or feeding sixty poor people. If he masturbates with the intention of ejaculating but does not ejaculate, he must complete the fast with the intention of pleasing the Almighty and then do it qadha. If he masturbates without the intention of ejaculating and he does not normally ejaculate, knowing that discharge is probable and it actually happens —he has to do qadha without the penalty. However, if such a person was confident that no discharge would take place and it actually happens — no qadha is required. In all these cases, there is no difference between a man and a woman.