Supplications in times of worry and grief

اَللّٰهُـمَّ إِنِّيْٓ عَبْـدُكَ، وَابْنُ عَبْـدِكَ، وَابْنُ أَمَتِـكَ، نَاصِيَتِيْ بِيَـدِكَ، مَاضٍ فِيَّ حُكْمُكَ، عَدْلٌ فِيَّ قَضَاۗؤُكَ أَسْاَلُـكَ بِكُلِّ اسْمٍ هُوَ لَكَ، سَمَّـيْتَ بِهٖ نَفْسَكَ أَوْ أَنْزَلْتَـهٗ فِيْ كِتَابِكَ، أَوْ عَلَّمْـتَهٗ أَحَدًا مِّنْ خَلْقِـكَ، أَوِ اسْتَـأْثَرْتَ بِهٖ فِيْ عِلْمِ الْغَيْـبِ عِنْـدَكَ، أَنْ تَجْـعَلَ الْقُرْاٰنَ رَبِيْـعَ قَلْبِيْ، وَنُوْرَ صَـدْرِيْ وجَلَاۗءَ حُـزْنِيْ وَذَهَابَ هَمِّي

O Allah, I am Your slave and the son of Your male slave and the son of Your female slave. My forelock is in Your Hand (i.e. you have control over me). Your Judgment upon me is assured and Your Decree concerning me is just. I ask You by every Name that You have named Yourself with, revealed in Your Book, taught any one of Your creation or kept unto Yourself in the knowledge of the unseen that is with You, to make the Qur`ān the spring of my heart, and the light of my chest, the banisher of my sadness and the reliever of my distress.

[Musnad Ahmad – 1/391]

اَللّٰهُـمَّ إِنِّيْٓ أَعْوْذُ بِكَ مِنَ الْهَـمِّ وَ الْحُـزْنِ، والْعَجْـزِ والْكَسَلِ والْبُخْـلِ والْجُـبْنِ، وضَلْـعِ الـدَّيْنِ وغَلَبَـةِ الرِّجَالِ

O Allah, I seek refuge in you from grief and sadness, from weakness and from laziness, from miserliness and from cowardice, from being overcome by debt and overpowered by men (i.e. others).

[Sahih Bukhari – 6369]