Ham Mutta Kiun Karty Hain is an Urdu book compiled by a Shiite Scholar Abdul Kareem Mushtaq. Its faith of Shiites that Temporary Marriage or Short Term Marriage is allowed in Islam till now. While Sunni Scholars say that Marriage of this kind has been stopped by Ummar son of Khattab r.a Second Caliph of Muslims. Then Shiites claimed that Hazrat Ummar r.a had no authority to cancel any order of Koran. Sunni say that and also try to prove that this order of said marriage was cancelled by Prophet pbuh but announced in reign of Hazrat Umar r.a. Here its confusion that if the order was cancelled by Prophet pbuh then why First Caliph Hazrat Abu Bakar Sadiq r.a did not implement that cancellation and why BAdullah bin Umar son of Second Caliph said that this order was cancelled by my father and did not why he cancelled. However it not means to criticize Fiqh of Shiites and Sunni. Here the book is added only for knowledge.