Tahajjud.

اللَّهُمَّ لَكَ الْحَمْدُ أَنْتَ قَيِّمُ السَّمَاوَاتِ وَالْأَرْضِ وَمَنْ فِيهِنَّ، وَلَكَ الْحَمْدُ لَكَ مُلْكُ السَّمَاوَاتِ وَالْأَرْضِ وَمَنْ فِيهِنَّ، وَلَكَ الْحَمْدُ أَنْتَ نُورُ السَّمَاوَاتِ وَالْأَرْضِ، وَلَكَ الْحَمْدُ أَنْتَ الْحَقُّ، وَوَعْدُكَ الْحَقُّ، وَلِقَاؤُكَ حَقٌّ، وَقَوْلُكَ حَقٌّ، وَالْجَنَّةُ حَقٌّ، وَالنَّارُ حَقٌّ، وَالنَّبِيُّونَ حَقٌّ، وَمُحَمَّدٌ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ حَقٌّ، وَالسَّاعَةُ حَقٌّ

Allāhumma lakal-ḥamdu anta qayyimus-samāwāti wal-arḍi wa man fīhinn. Wa lakal-ḥamdu laka mulkus-samāwāti wal-arḍi wa man fīhinn. Wa lakal-ḥamdu anta nūrus-samāwāti wal-arḍ. Wa lakal-ḥamdu antal-ḥaqq, wa waʿdukal-ḥaqq, wa liqāʾuka ḥaqq, wa qawluka ḥaqq, wal-jannatu ḥaqq, wan-nāru ḥaqq, wan-nabiyyūna ḥaqq, wa Muḥammadun ﷺ ḥaqq, was-sāʿatu ḥaqq.

O Allah, all praise is Yours. You are the Sustainer of the heavens and the earth and all that is in them. All praise is Yours; Yours is the kingdom of the heavens and the earth and all that is in them. All praise is Yours; You are the Light of the heavens and the earth. All praise is Yours; You are the Truth, Your promise is the truth, Your meeting is truth, Your word is truth, Paradise is truth, the Fire is truth, the Prophets are truth, Muhammad ﷺ is truth, and the Hour is truth.

اللَّهُمَّ اجْعَلْ فِي قَلْبِي نُورًا، وَفِي لِسَانِي نُورًا، وَاجْعَلْ فِي سَمْعِي نُورًا، وَاجْعَلْ فِي بَصَرِي نُورًا، وَاجْعَلْ مِنْ خَلْفِي نُورًا، وَمِنْ أَمَامِي نُورًا، وَاجْعَلْ مِنْ فَوْقِي نُورًا، وَمِنْ تَحْتِي نُورًا، اللَّهُمَّ أَعْطِنِي نُورًا

Allāhummaj'al fī qalbī nūrā, wa fī lisānī nūrā, waj'al fī samʿī nūrā, waj'al fī baṣarī nūrā, waj'al min khalfī nūrā, wa min amāmī nūrā, waj'al min fawqī nūrā, wa min taḥtī nūrā, Allāhumma aʿṭinī nūrā.

O Allah, place light in my heart, light in my tongue, light in my hearing, light in my sight, light behind me, light in front of me, light above me, light below me. O Allah, grant me light.

اللَّهُمَّ إِنَّكَ عَفُوٌّ تُحِبُّ الْعَفْوَ فَاعْفُ عَنِّي

Allāhumma innaka ʿafuwwun tuḥibbul-ʿafwa faʿfu ʿannī.

O Allah, You are Pardoning and You love pardon, so pardon me.

Especially recite this during the last ten nights of Ramaḍān.

وَجَّهْتُ وَجْهِيَ لِلَّذِي فَطَرَ السَّمَاوَاتِ وَالْأَرْضَ حَنِيفًا وَمَا أَنَا مِنَ الْمُشْرِكِينَ

Wajjahtu wajhiya lilladhī faṭaras-samāwāti wal-arḍa ḥanīfan, wa mā ana minal-mushrikīn.

I have directed my face toward He who created the heavens and the earth, as a ḥanīf, and I am not of the polytheists.

Recite this as the opening iftitāḥ of Tahajjud before the Fātiḥah.

رَبِّ اغْفِرْ لِي، رَبِّ اغْفِرْ لِي

Rabbighfir lī, Rabbighfir lī.

My Lord, forgive me. My Lord, forgive me.

Recite this in the sitting between the two prostrations of every rakʿah.

اللَّهُمَّ اهْدِنِي فِيمَنْ هَدَيْتَ، وَعَافِنِي فِيمَنْ عَافَيْتَ، وَتَوَلَّنِي فِيمَنْ تَوَلَّيْتَ، وَبَارِكْ لِي فِيمَا أَعْطَيْتَ، وَقِنِي شَرَّ مَا قَضَيْتَ، فَإِنَّكَ تَقْضِي وَلَا يُقْضَى عَلَيْكَ، وَإِنَّهُ لَا يَذِلُّ مَنْ وَالَيْتَ، تَبَارَكْتَ رَبَّنَا وَتَعَالَيْتَ

Allāhummah-dinī fīman hadayt, wa ʿāfinī fīman ʿāfayt, wa tawallanī fīman tawallayt, wa bārik lī fīmā aʿṭayt, wa qinī sharra mā qaḍayt. Fa-innaka taqḍī wa lā yuqḍā ʿalayk, wa innahū lā yadhillu man wālayt. Tabārakta Rabbanā wa taʿālayt.

O Allah, guide me among those You have guided, pardon me among those You have pardoned, befriend me among those You have befriended, bless me in what You have given, and protect me from the evil of what You have decreed. For verily You decree and none can decree over You. And he whom You have befriended is not humbled. Blessed are You, our Lord, and Exalted.

Recited in the final rakʿah of Witr, in the standing after rukūʿ.

سُبْحَانَ الْمَلِكِ الْقُدُّوسِ

Subḥānal-Malikil-Quddūs.

Glory be to the Sovereign, the Most Holy.

Recite this three times in the third rakʿah of Witr, raising the voice on the third.

رَبَّنَا آتِنَا فِي الدُّنْيَا حَسَنَةً وَفِي الْآخِرَةِ حَسَنَةً وَقِنَا عَذَابَ النَّارِ

Rabbanā ātinā fid-dunyā ḥasanatan wa fil-ākhirati ḥasanatan wa qinā ʿadhābann-nār.

Our Lord, give us good in this world and good in the Hereafter, and protect us from the punishment of the Fire.

اللَّهُمَّ إِنِّي ظَلَمْتُ نَفْسِي ظُلْمًا كَثِيرًا، وَلَا يَغْفِرُ الذُّنُوبَ إِلَّا أَنْتَ، فَاغْفِرْ لِي مَغْفِرَةً مِنْ عِنْدِكَ وَارْحَمْنِي، إِنَّكَ أَنْتَ الْغَفُورُ الرَّحِيمُ

Allāhumma innī ẓalamtu nafsī ẓulman kathīrā, wa lā yaghfirudh-dhunūba illā ant. Faghfir lī maghfiratan min ʿindika warḥamnī, innaka antal-Ghafūrur-Raḥīm.

O Allah, I have greatly wronged myself, and none forgives sins except You. So grant me forgiveness from You and have mercy on me. Surely You are the Oft-Forgiving, the Most Merciful.

Recite this in the final sitting of prayer, after the Tashah-hud and before the salām.