What is meant by the great “fitnah” (strife/temptation) and “fasad” (corruption) mentioned in the Hadith: “If someone whose religion and character you are pleased with comes to you [seeking marriage], then marry [him to your guardian's ward]. If you do not do so, there will be fitnah in the land and widespread corruption,” and upon whom will this corruption and fitnah befall?

Islam has urged the consideration of religiosity and good character as the basis for choosing a spouse, strongly encouraging it and warning against neglecting it in favor of worldly possessions. On the authority of Abu Hurairah, may Allah be pleased with him, the Prophet, peace and blessings be upon him, said: «A woman is married for four reasons: for her wealth, for her lineage, for her beauty, and for her religiosity. So, choose the religious one, and you will prosper.» Also, on his authority, he said: The Messenger of Allah, peace and blessings be upon him, said: «If someone whose religiosity and character you approve of proposes to you, then marry him. If you do not do so, there will be tribulation on earth and widespread corruption.» This indicates the importance of accepting a suitor who possesses religiosity and good character, and that rejecting him without a legitimate Shar'i reason leads to tribulation and corruption. Scholars are of the view that compatibility in marriage is only considered in terms of religiosity alone. Guardians should marry their daughters to those who fear Allah, because if he loves her, he will honor her, and if he dislikes her, he will not oppress her. They must accept the righteous suitor and overcome any fears that may merely be satanic whispers.