Is the saying "Praise be to Allah who has spared me from what He has afflicted you with" considered a supplication (dua), and is the phrase "He has been spared from this affliction" considered a response to it? Are the well-known conditions for the acceptance of supplications, as found in the Quran and Sunnah, required for this supplication to be answered? And can the effect of this supplication be delayed until the afterlife, or is it limited to this worldly life only?

A servant's utterance of "Alhamdulillah (Praise be to Allah)" is considered both a supplication (Du'a) and a remembrance (Dhikr) of Allah Almighty, and it is the best of supplications. The supplication reported to be recited upon seeing an afflicted person, "Alhamdulillahil-ladhi 'afani mim-mabtalaka bihi, wa faddalani 'ala kathirin mimman khalaqa tafdila (Praise be to Allah Who has spared me from what He has afflicted you with, and preferred me greatly over many of those whom He has created)," is both a supplication and a remembrance at the same time. The rules of supplication's acceptance, such as the fulfillment of conditions and the absence of impediments, apply to it. If the effect of the remembrance or supplication is not manifested, it is due to the presence of an impediment that prevents the effect from occurring, and not due to a defect in the cause itself, as explained by Sheikh Ibn 'Uthaymeen.