Find authentic duas from the Quran & Sunnah
O Allah, unite their hearts, mend the relations between them, guide them to the ways of peace, bring them forth from darkness into light by Your leave, and keep them away from all shameful deeds, whether open or secret.
"O Turner of the hearts, keep my heart firm upon Your religion and upon Your obedience."
O Allah, I ask You for beneficial knowledge, good provisions, and acceptable deeds. O Allah, protect me from Your punishment on the Day You gather Your creation.
O Allah, lengthen for us Your walls, suffice us from Your trials, and cause us to die unto You in a state of uprightness, and bestow upon us Your blessings in Your land.
I seek refuge in the perfect words of Allah from the evil of what He has created.
O Allah, I seek Your guidance with Your knowledge, and I seek ability with Your power, and I ask for Your immense bounty. For indeed, You decree and I do not decree, and You know and I do not know, and You are the Knower of the unseen. O Allah, if You know that this matter (mention the matter, e.g., reconciling with [person's name]) is good for me in my religion, my worldly life, and for my hereafter - or he said: for my present and future affairs - then decree it for me, make it easy for me, and then bless it for me. And if You know that this matter is bad for me in my religion, my worldly life, and for my hereafter - or he said: for my present and future affairs - then turn it away from me, and turn me away from it, and decree for me whatever is good, and make me content with it.
Glory be to Him Who has subjected this to us, and we could never have accomplished it by ourselves. And surely, to our Lord we are returning.
In the name of Allah, with whose name nothing harms on earth nor in the heavens, and He is the Hearing, the Knowing.
O Allah, indeed I am Your servant, son of Your servant, son of Your female servant. My forelock is in Your hand. Your decree concerning me is inevitable, and Your judgment of me is just. I ask You by every name that You have called Yourself, or revealed to anyone from Your creation, or sent down in Your Book, or preserved in the knowledge of the unseen with You, that You make the Qur'an the springtime of my heart, the light of my chest, the banisher of my sadness, and the remover of my worries.
My Lord, grant me from among the righteous.
O Allah, forgive [name], and raise his status among those who are guided. And leave behind for him offspring who will pray for him. Forgive us and him, O Lord of the worlds. And widen his grave and illuminate it for him.
O Allah, forgive me, have mercy upon me, guide me, protect me, and provide for me.