Narrated by Umar 'bin Al Khattab I heard Allah's Apostle saying:"The rewards of deeds depends upon the intentions and every person will get the rewards according to what he has intended. So whoever emigrated for wordly benefits or for a woman to marry, his emigration was what he emigrated for". Sahih Bukhari, Volume 1, book 1. revelation. Hadeeth No. 001.
Narrated Abu Huraira: The Prophet said, "Beware of suspicion, for suspicion is the worst of false tales; and do not look for the others' faults and do not spy, and do not be jealous of one another, and do not desert (cut your relation with) one another, and do not hate one another; and O Allah's worshipers! Be brothers (as Allah has ordered you!") Bukhari :: Book 8 :: Volume 73 :: Hadith 90
Narrated Ibn 'Abbas: The Prophet said: "I was shown the Hell-fire and that the majority of its dwellers were women who were ungrateful." It was asked, "Do they disbelieve in Allah?" (or are they ungrateful to Allah?) He replied, "They are ungrateful to their husbands and are ungrateful for the favors and the good (charitable deeds) done to them. If you have always been good (benevolent) to one of them and then she sees something in you (not of her liking), she will say, 'I have never received any good from you." (Sahih Bukhari, Volume 1, Book 2, Number 28)