Asmaa' bint 'Umays related that the Messenger of Allah (Blessings and Peace be upon him) said to her:
"Shall I not teach you words that you should say when in distress: "Allah, Allah, My Lord; I do not associate any partners with Him."
In another hadith, the Prophet (bpuh) informed us that when one is afflicted with sickness or hardship, he will find relief if he says:
"Allah, My Lord; He has no partner."
At times, one becomes afflicted with a severe trial. If he turns to his Lord and surrenders his will to Him without associating any partners with Him, his hardship will go away.