There is no place of cheating in marriage in Islam. Marriage in Holy Quran is known as ‘mithaq’ i.e. covenant. Nikah is also used for marriage agreement. A contract between a husband and wife in the presence of witnesses and under the vigilance of Allah. The mutual consent is technically called affirmation or declaration acceptance in Fiqh.
When there is cheating in marriage, this not only violates the terms of the contract but also the law of Allah. When a person cheats in marriage, he/she has to face the wrath of Allah in both worlds. The Prophet of Allah (Peace be upon him) said:
“The one who cheats is not one of us.” (Sahih Muslim).
Reflect on this verse:
O ye who believe! Guard your duty to Allah, and speak words straight to the point; He will adjust your works for you and will forgive you your sins. Whosoever obeys Allah and His messenger, he verily hath gained a highest achievement. [Surat ul Ahzaab 33:70-71]
In Nikah Khutbah both these verses are recited necessarily. Allah tells the believers; try not to hide their evil intentions in Nikah by speaking untruth. Some people cheat by saying they will Mehr after marriage is being consummated, but the truth is they never mean it.
Cheating creates Imbalance in Society:
The other form of cheating is that all the gifts that are given to the bride before marriage are taken back in case of divorce. This act is punishable in front of Allah as it breaks the very social fabric in a society. Islam always teach Muslims to maintain the standard of living harmoniously in the society, and any action that will go contrary to it, then the doer of that action will have to face punishment on the Day of Judgment. (May Allah protect us from that and may He make our marriages a source of blessings, both in this world and the hereafter).
According to Sahi Bukhari, narrated ‘Ali bin Abi Talib:
On the day of Khaibar, Allah’s Apostle forbade the Mut’a (i.e. temporary marriage) and the eating of donkey-meat.
According to this Hadith, Sunni Muslims believe that temporary marriages are totally forbidden in Islam. This is one of the worst forms of cheating in Islam.