Qist Maktab · Islamic Studies · Class 3
Jealousy becomes harmful when we dislike another person's blessing and wish that they would lose it. Instead, Islam teaches us to ask Allah for goodness, be thankful for what we have and wish good for others.
It is normal to notice that someone has something we would like. The better response is to turn that feeling into healthy effort: make dua, work for what is lawful and avoid resentment.