When the Prophet ﷺ got up at night to offer the Tahajjud prayer, he used to say: Allahumma lakal-hamd. Anta qaiyyimus-samawati wal-ard wa man fihinna. Walakal-hamd, Laka mulkus-samawati wal-ard wa man fihinna. Walakal-hamd, anta nurus-samawati wal-ard. Wa lakal-hamd, anta-l-haq wa wa'duka-lhaq, wa liqa'uka Haq, wa qauluka Haq, wal-jannatu Han wan-naru Haq wannabiyuna Haq. Wa Muhammadun, sallal-lahu'alaihi wasallam, Haq, was-sa'atu Haq. Allahumma aslamtu Laka wabika amantu, wa 'Alaika tawakkaltu, wa ilaika anabtu wa bika khasamtu, wa ilaika hakamtu faghfir li ma qaddamtu wama akh-khartu wama as-rartu wama'a lantu, anta-l-muqaddim wa anta-l-mu akh-khir, la ilaha illa anta (or la ilaha ghairuka). (O Allah! All the praises are for you, You are the Holder of the Heavens and the Earth, And whatever is in them. All the praises are for You; You have the possession of the Heavens and the Earth And whatever is in them. All the praises are for You; You are the Light of the Heavens and the Earth And all the praises are for You; You are the King of the Heavens and the Earth; And all the praises are for You; You are the Truth and Your Promise is the truth, And to meet You is true, Your Word is the truth And Paradise is true And Hell is true And all the Prophets (Peace be upon them) are true; And Muhammad is true, And the Day of Resurrection is true. O Allah ! I surrender (my will) to You; I believe in You and depend on You. And repent to You, And with Your help I argue (with my opponents, the non-believers) And I take You as a judge (to judge between us). Please forgive me my previous And future sins; And whatever I concealed or revealed And You are the One who make (some people) forward And (some) backward. There is none to be worshipped but you . Sufyan said that ʿAbdul Karim Abu Umaiya added to the above, 'Wala haula Wala quwata illa billah' (There is neither might nor power except with Allah). (Using translation from Bukhārī 1120)   

كَانَ رَسُولُ اللهِ ﷺ إِذَا قَامَ يَتَهَجَّدُ مِنَ اللَّيْلِ ح وَأَخْبَرَنَا أَبُو عَبْدِ اللهِ الْحَافِظُ وَاللَّفْظُ لَهُ أنبأ أَبُو بَكْرِ بْنُ إِسْحَاقَ الْفَقِيهُ أنبأ بِشْرُ بْنُ مُوسَى ثنا الْحُمَيْدِيُّ ثنا سُفْيَانُ ثنا سُلَيْمَانُ الْأَحْوَلُ خَالُ ابْنِ أَبِي نَجِيحٍ قَالَ سَمِعْتُ طَاوُسًا يَقُولُ سَمِعْتُ ابْنَ عَبَّاسٍ يَقُولُ كَانَ النَّبِيُّ ﷺ إِذَا قَامَ مِنَ اللَّيْلِ يَتَهَجَّدُ قَالَ اللهُمَّ لَكَ الْحَمْدُ أَنْتَ نُورُ السَّمَاوَاتِ وَالْأَرْضِ وَمَنْ فِيهِنَّ وَلَكَ الْحَمْدُ أَنْتَ قَيِّمُ السَّمَاوَاتِ وَالْأَرْضِ وَمَنْ فِيهِنَّ وَلَكَ الْحَمْدُ أَنْتَ مَلِكُ السَّمَاوَاتِ وَالْأَرْضِ وَمَنْ فِيهِنَّ وَلَكَ الْحَمْدُ أَنْتَ الْحَقُّ وَوَعْدُكَ الْحَقُّ وَقَوْلُكَ حَقٌّ وَلِقَاؤُكَ حَقٌّ وَالْجَنَّةُ حَقٌّ وَالنَّارُ حَقٌّ وَالسَّاعَةُ حَقٌّ وَمُحَمَّدٌ ﷺ حَقٌّ وَالنَّبِيُّونَ حَقٌّ اللهُمَّ لَكَ أَسْلَمْتُ وَبِكَ آمَنْتُ وَعَلَيْكَ تَوَكَّلْتُ وَإِلَيْكَ أَنَبْتُ وَبِكَ خَاصَمْتُ وَإِلَيْكَ حَاكَمْتُ فَاغْفِرْ لِي مَا قَدَّمْتُ وَمَا أَخَّرْتُ وَمَا أَسْرَرْتُ وَمَا أَعْلَنْتُ أَنْتَ الْمُقَدِّمُ وَأَنْتَ الْمُؤَخِّرُ لَا إِلَهَ إِلَّا أَنْتَ أَوْ قَالَ لَا إِلَهَ غَيْرُكَ شَكَّ سُفْيَانُ قَالَ الْحُمَيْدِيُّ قَالَ سُفْيَانُ وَزَادَ عَبْدُ الْكَرِيمِ أَبُو أُمَيَّةَ وَلَا حَوْلَ وَلَا قُوَّةَ إِلَّا بِاللهِ لَمْ يَقُلْهَا سُلَيْمَانُ  

When the Messenger of Allah ﷺ stood up for praying at midnight, he said: o Allah, be praise to Thee, Thou art the light of the heavens and the earth; and to Thee be praise; Thou are the maintainer of the heavens and the earth; and to Thee be praise, Thou art the heavens and the earth and what is between them; Thou art the truth, and Thy statement is truth; and Thy promise is the truth; and the visitation with Thee is true; and the Paradise is true and the Hell-fire is true and the Hour is true; O Allah, to Thee I turned my attention, and by Thee I disputed, and to Thee I brought forth my case, so forgive me my former and latter sins, and my secret and open sins, Thou art my deity, there is no deity but Thou. (Using translation from Abū Dāʾūd 771)   

أَنَّهُ سَمِعَ ابْنَ عَبَّاسٍ يَقُولُ كَانَ رَسُولُ اللهِ ﷺ إِذَا تَهَجَّدَ مِنَ اللَّيْلِ قَالَ اللهُمَّ لَكَ الْحَمْدُ أَنْتَ نُورُ السَّمَاوَاتِ وَالْأَرْضِ وَلَكَ الْحَمْدُ أَنْتَ قَيِّمُ السَّمَاوَاتِ وَالْأَرْضِ وَمَنْ فِيهِنَّ أَنْتَ الْحَقُّ وَوَعْدُكَ الْحَقُّ وَقَوْلُكَ الْحَقُّ وَلِقَاؤُكَ الْحَقُّ وَالْجَنَّةُ حَقٌّ وَالنَّارُ حَقٌّ وَالنَّبِيُّونَ حَقٌّ اللهُمَّ لَكَ أَسْلَمْتُ وَبِكَ آمَنْتُ وَعَلَيْكَ تَوَكَّلْتُ وَإِلَيْكَ أَنَبْتُ وَإِلَيْكَ خَاصَمْتُ وَإِلَيْكَ حَاكَمْتُ فَاغْفِرْ لِي مَا قَدَّمْتُ وَمَا أَخَّرْتُ وَمَا أَسْرَرْتُ وَمَا أَعْلَنْتُ أَنْتَ إِلَهِي لَا إِلَهَ إِلَّا أَنْتَ  

there is no god but Allah alone Who has no partner, to whom dominion belongs, to whom praise is due, and who has power over everything (omnipotent). Glory be to Allah, and praise be to Allah, and there is no god but Allah, and then he prays: O my Lord, forgive me. Abu Dawud said : Al-Walid’s version has; and he prays, his prayer will be answered. If he gets up, performs ablution, and prays, his prayer will be accepted. (Using translation from Abū Dāʾūd 5060)   

قَالَ رَسُولُ اللهِ ﷺ مَنْ تَعَارَّ مِنَ اللَّيْلِ فَقَالَ لَا إِلَهَ إِلَّا اللهُ وَحْدَهُ لَا شَرِيكَ لَهُ لَهُ الْمُلْكُ وَلَهُ الْحَمْدُ وَهُوَ عَلَى كُلِّ شَيْءٍ قَدِيرٌ سُبْحَانَ اللهِ وَالْحَمْدُ لِلَّهِ وَلَا إِلَهَ إِلَّا اللهُ وَاللهُ أَكْبَرُ وَلَا حَوْلَ وَلَا قُوَّةَ إِلَّا بِاللهِ ثُمَّ قَالَ رَبِّ اغْفِرْ لِي غُفِرَ لَهُ أَوْ قَالَ فَدَعَا اسْتُجِيبَ لَهُ فَإِنْ هُوَ عَزَمَ فَقَامَ فَتَوَضَّأَ وَصَلَّى قُبِلَتْ صَلَاتُهُ