Tafsir of Al-Anbiya' 21:88

The prayer of Yunus (علیہ السلام) is invoked by all people at all times and for all their needs

وَكَذَٰلِكَ نُنجِي الْمُؤْمِنِينَ (And this is how We rescue the believers - 21:88.) That is, just as We released Yunus (علیہ السلام) from his misery and distress, so do We deliver other believers (مُؤْمِنِينَ ) when they turn towards Us repenting their sins sincerely.

According to a hadith of the Holy Prophet (صلی اللہ علیہ وآلہ وسلم) if a Muslim prays to Allah Ta` a1a for the grant of a wish in the words used by Yunus (علیہ السلام) when he was in the stomach of the fish i.e. لَّا إِلَـٰهَ إِلَّا أَنتَ سُبْحَانَكَ إِنِّي كُنتُ مِنَ الظَّالِمِينَ (21:87) He would accept his prayer and grant his wish. (Ahmad, Tirmidhi, Mahari)