Is there disbelief in the statement — God forbid: "May the father of hardship be cursed"?

The one who utters this phrase does not become an unbeliever, but phrases that include complaint and discontent with Allah's decree are unlawful (haram). A Muslim should keep away from cursing and reviling, because a believer is not a frequent curser, nor a slanderer, nor obscene, nor foul-mouthed. It is not permissible to curse animals and inanimate objects, because if a curse does not find a target, it returns to its utterer. When a Muslim faces difficulties in his affairs, he should be patient and ask Allah for ease, for indeed, with hardship comes ease.