salamun alaiqum, ek bhai ne 3-4 saal pehle qaza namaz adaa krne k liye paise liye they. unko abi yaad nhi hai k unhone kitni namaz adaa ki hai or kitni baki hai. to unke liye kya hukm hai? kaffara dena hoga? paise wapas dene honge? dubara sari namaz ko adaa krni hogi?