The Messenger of Allah (ﷺ) said: “Whoever sees a person afflicted and say: ‘All praise is due to Allah Who saved me from that which He has afflicted you with, and blessed me greatly over many of those whom He has created, (Al-ḥamdulillāhi alladhī `āfānī mimmabtalāka bihī wa faḍḍalanī `alā kathīrin mimman khalaqa tafḍīla)’ then he shall be saved from that affliction for as long as he lives.”
Jami` at-Tirmidhi Book 48, Hadith 62
← Previous Hadith the Prophet (ﷺ) said: “Whoever says: ‘There is none worthy of worship except Allah, and Allah is the Greatest, (Lā ilāha illallāh, wa Allāhu akbar)’ His Lord affirms his statement and says: ‘There is none worthy of worship except Me, and I am the Greatest,’ and when he say: ‘There is none worthy of worship except for Allah, Alone, (Lā ilāha illallāh, waḥdahu)’ Allah says: ‘There is none worthy of worship except for Me and I am Alone.’ And when he say: ‘There is none worthy of worship except for Allah, Alone, without partner, (Lā ilāha illallāh, waḥdahu lā sharīka lahu)’ Allah says: ‘There is none worthy of worship except Me, Alone, I have no partner.’ And when he say: ‘There is none worthy of worship except for Allah, to Him belongs all that exists, and to Him is the praise, (Lā ilāha illallāh, lahul-mulku wa lahul-ḥamdu)’ Allah says: ‘There is none worthy of worship except Me, to Me belongs all that exists, and to Me is the praise.’ And when he says: ‘There is none worthy of worship except Allah, and there is no might or power except by Allah, (Lā ilāha illallāh, wa lā ḥawla wa lā quwwata illā billāh)’ Allah says: ‘There is none worthy of worship except Me, and there is no might or power except by Me.’” And he used to say: “Whoever says it in his illness, then dies, the Fire shall not consume him.”

Jami` at-Tirmidhi Book 48, Hadith 61 Next Hadith → The Messenger of Allah (ﷺ) said: “Whoever sees an afflicted person then says: ‘All praise is due to Allah who saved me from that which He has afflicted you with, and blessed me greatly over many of those whom He has created, (Al-ḥamdulillāhi alladhī `āfānī mimmabtalāka bihī wa faḍḍalanī `alā kathīrin mimman khalaqa tafḍīla)’ he shall not be struck by that affliction.”

Jami` at-Tirmidhi Book 48, Hadith 63