“And certainly we shall test you with something of fear, hunger, loss of wealth, lives and fruits, but give glad tidings to As-Sabirun (the patient). Who, when afflicted with calamity, say, “Inna Lillahi Wa Inna Ilaihi raji’un (Truly, to Allah we belong and truly, to Him we shall return).” They are those on whom are the Salawat ( i.e who are blessed and will be forgiven) from their Lord, and ( they are those who) receive His Mercy, and it is they who are the guided ones."
(Surah Al-Baqarah 2:155-157)
Ibn Al- Qayyim mentioned the Hadeeth of Al-Istirja and then he said:
This expression is one of the most effective and most beneficial treatments for one who is afflicted by calamities, because it contains two fundamental principles, which if they are realized, the slave will be consoled thereby from his calamity.(Al- Istirja’: saying the words: “Inna Lillahi Wa Inna Ilaihi raji’un”) Verily, we are for Allah and to Him we shall return.
(This Hadeeth was narrated by Muslim and Ahmad, on the authority of Umm Salamah radi Allahu anhu.)
The first of them is that the slave and his wealth belong to Allah and He has given it to him as a loan.
The second of them is that the return is to Allah and it is inevitable that he will leave the life of this world behind; so if this is his beginning and his end, then his thinking about them is one of the greatest treatments for this illness and a part of his treatment is that he knows that what was ordained to afflict him cannot miss him and what was ordained to miss him cannot afflict him.
And a part of it is that his Lord has set aside for him the like of that which he missed or better and He has stored up for him that which is many times better than the calamity and that if He had willed, He could have made the calamity greater than it was.
A beautiful and touching Arabic nasheed about life and death
(by Meshary Alarada - Farshy AlTurab)
and how we will all inevitabally return to Allah SWT.
(English subtitles included).
"When a person dies, all his deeds come to an end except three: sadaqah jaariyah (ongoing charity, e.g. a waqf or endowment), beneficial knowledge (which he has left behind), or a righteous child who will pray for him."
(Reported by al-Tirmidhi, no 1376; he said this is a saheeh hasan hadeeth)