In The Name of Allaah, The Most Merciful, The Bestower of Mercy.
Shaikh Saaleh Al-Fawzaan [hafidhahullaah] said:
Supplicate for your brother to be blessed. Supplicate for him to be blessed instead of wishing that the blessing he is given should cease to exist. Supplicate for him that the blessing he is given should remain and that Allaah blesses him with it. This [supplication of yours for your brother] will not harm you, rather it something through which Allaah will benefit you. Envy is cured with the likes of these deeds.
Also that which will cure the disease of envy is that you seek after provision and employ the means of earning a livelihood. As for sitting (about idly) and being lazy, whilst envying those who earn through seeking after provision – envying them for that which Allaah has bestowed on them of His bounties- then you are to be blamed. You are the one who has fallen short; you are the one who has abandoned the means to earning a livelihood and the one with a self-inflicted laziness; therefore you should blame yourself, let alone envy people for what Allaah has given them of His bounties.
Envy can lead to disbelief just as it led Iblees to disbelief; it can lead to committing murder just as it led Haabil to murder his brother Qaabil. Allaah narrated this story to us in order that we may ponder upon it; take warning from it and be warned against envy.
Envy can lead a person to oppose Allaah [Glorified and Exalted Be He]- opposing His Divine Will and Decree – that Allaah is not All-Wise, Fully-Aware and All-Knowing because he gave someone who is not worthy to be given or punishes someone who is not worthy to be punished. This (belief) is tantamount to disbelief in Allaah’s Divine Will and Decree. Envy is a harmful disease, so seek Allaah’s Refuge against envy. In a hadeeth transmitted by Imaam Ahmad and Imaam Tirmidhee, it is stated: “Envy consumes good deeds just as fire burns wood’’. Therefore, be warned lest your rewards and righteous deeds are consumed due to envy. Seek Allaah’s Refuge against envy and ask Allaah to give you from His bounties; love good for your brothers and supplicate for them to be blessed. All the bounty is in the Hand of Allah; He grants to whom He wills. And Allah is All-Sufficient for His creatures’ needs, the All-Knower. Therefore, do not oppose Allaah and thus your deeds are nullified whilst you are unaware of that. [Paraphrased: Listen to audio here: