This is Habib ‘Abdullah bin Husayn bin Tahir’s prayer which has been tried and tested for the removal of hardships:
اللَّهُمَّ صَلِّ عَلَى سَيِّدِنَا مُحَمَّدٍ و عَلَى آلِ سَيِّدِنَا مُحَمَّدٍ صَلاةَ عَبْدٍ قَلَّتْ حِيلَتُهُ و رَسُولُ اللهِ وَسِيلتُهُ وأَنْتَ لها يا إِلهي و لِكُلِّ كَرْبٍ عَظِيمٍ فَفَرِّجْ ما أَنا فيِهِ بِسِرِّ :بِسْمِ اللهِ الرَّحْمَنِ الرَّحِيم
O Allah, bestow prayers upon our Master Muhammad and upon the Family of our Master Muhammad, the prayers of a slave who has no way out and the Messenger of Allah is his only intermediary. My Lord, You are here for this and for every great calamity, so remove the hardship that I am in through the secret of: ‘In the name of Allah, the Most Compassionate, the Most Merciful.’