When danger came, the Prophet (ﷺ) would say:
لَا إِلَهَ إِلاَّ أَنْتَ سُبْحَانَكَ إِنِّى كُنْتُ مِنَ الظَّالِمِيْنَ
Transliteration
Laa Ilaaha Illaaa Anta Subh’aanaka Innee Kuntu Minaz” Z’aalimeen
Translation
None has the right to be worshipped but You (O Allah), Glorified (and Exalted) are You. Truly, I have been of the wrong-doers.
حَدَّثَنَا مُحَمَّدُ بْنُ يَحْيَى، حَدَّثَنَا مُحَمَّدُ بْنُ يُوسُفَ، حَدَّثَنَا يُونُسُ بْنُ أَبِي إِسْحَاقَ، عَنْ إِبْرَاهِيمَ بْنِ مُحَمَّدِ بْنِ سَعْدٍ، عَنْ أَبِيهِ، عَنْ سَعْدٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " دَعْوَةُ ذِي النُّونِ إِذْ دَعَا وَهُوَ فِي بَطْنِ الْحُوتِ لاَ إِلَهَ إِلاَّ أَنْتَ سُبْحَانَكَ إِنِّي كُنْتُ مِنَ الظَّالِمِينَ . فَإِنَّهُ لَمْ يَدْعُ بِهَا رَجُلٌ مُسْلِمٌ فِي شَيْءٍ قَطُّ إِلاَّ اسْتَجَابَ اللَّهُ لَهُ " . قَالَ مُحَمَّدُ بْنُ يَحْيَى قَالَ مُحَمَّدُ بْنُ يُوسُفَ مَرَّةً عَنْ إِبْرَاهِيمَ بْنِ مُحَمَّدِ بْنِ سَعْدٍ، عَنْ سَعْدٍ، . قَالَ أَبُو عِيسَى وَقَدْ رَوَى غَيْرُ، وَاحِدٍ، هَذَا الْحَدِيثَ عَنْ يُونُسَ بْنِ أَبِي إِسْحَاقَ، عَنْ إِبْرَاهِيمَ بْنِ مُحَمَّدِ بْنِ سَعْدٍ، عَنْ سَعْدٍ، وَلَمْ يَذْكُرُوا فِيهِ عَنْ أَبِيهِ، . وَرَوَى بَعْضُهُمْ، عَنْ يُونُسَ بْنِ أَبِي إِسْحَاقَ، فَقَالُوا عَنْ إِبْرَاهِيمَ بْنِ مُحَمَّدِ بْنِ سَعْدٍ، عَنْ أَبِيهِ، عَنْ سَعْدٍ، وَكَانَ، يُونُسُ بْنُ أَبِي إِسْحَاقَ رُبَّمَا ذَكَرَ فِي هَذَا الْحَدِيثِ عَنْ أَبِيهِ، وَرُبَّمَا، لَمْ يَذْكُرْهُ .
Translation
Ibrahim bin Muhammad bin Sa`d narrated from his father, from Sa`d that the Messenger of Allah (ﷺ) said: “The supplication of Dhun-Nun (Prophet Yunus) when he supplicated, while in the belly of the whale was: ‘There is none worthy of worship except You, Glory to You, Indeed, I have been of the transgressors. (Lā ilāha illā anta subḥānaka innī kuntu minaẓ-ẓālimīn)’ So indeed, no Muslim man supplicates with it for anything, ever, except Allah responds to him.” Jami` at-Tirmidhi 3505 [Sahih (Albani). Tirmizi: 3505]
Surah as saffat protects Muslims from jinn and evil. Allah uses angels and stars to guard believers. This brings peace to anyone who trusts His words.
It means only Allah is the true god, and He makes no mistakes. We say it when we did wrong and want Allah to forgive and help us, especially in hard times.
Yes. You can say la ilaha illa anta subhanaka inni kuntu minaz-zalimin and other Quran verses in sujood. Many Muslims ask Allah for help and ease in problems during sujood.
You feel safe and calm. It helps Allah forgive you, protect you, and makes you trust Him more when you are sad or have problems.
Say Allahumma innee a'uzubika min alhammi wal huzni wal ajzi wal kasli wal bukhli wal jubni wa dala'id dayni wa galabatir rijaal. This asks Allah to take away stress and make hard times easy.
Say Allahumma la sahla illa ma ja'altahu sahla, wa 'anta taj'alul hazna idha shi'ta sahla. Muslims read this to ask Allah to make things easy when life is hard.