Reference : Hisn al-Muslim 101

((ءامَنَ الرَّسُولُ بِمَا أُنزِلَ إِلَيْهِ مِن رَّبِّهِ وَالْمُؤْمِنُونَ 
كُلٌّ ءامَنَ بِاللهِ وَمَلآئِكَتِهِ وَكُتُبِهِ وَرُسُلِهِ
لاَ نُفَرِّقُ بَيْنَ أَحَدٍ مِّن رُّسُلِهِ
وَقَالُواْ سَمِعْنَا وَأَطَعْنَا
غُفْرَانَكَ رَبَّنَا وَإِلَيْكَ الْمَصِيرُ {285}
لاَ يُكَلِّفُ اللهُ نَفْسًا إِلاَّ وُسْعَهَا
لَهَا مَا كَسَبَتْ وَعَلَيْهَا مَا اكْتَسَبَتْ
رَبَّنَا لاَ تُؤَاخِذْنَا إِن نَّسِينَا أَوْ أَخْطَأْنَا
رَبَّنَا وَلاَ تَحْمِلْ عَلَيْنَا إِصْرًا كَمَا حَمَلْتَهُ عَلَى الَّذِينَ مِن قَبْلِنَا
رَبَّنَا وَلاَ تُحَمِّلْنَا مَا لاَ طَاقَةَ لَنَا بِهِ
وَاعْفُ عَنَّا وَاغْفِرْ لَنَا وَارْحَمْنَآ
أَنتَ مَوْلاَنَا فَانصُرْنَا عَلَى الْقَوْمِ الْكَافِرِينَ {286}))
Āmanar-Rasūlu bimā unzila ilaihi mir-Rabbihi wa ‘l-mu'minūn, 
kullun āmana billāhi wa malā'ikatihi wa kutubihi wa rusulih, 
lā nufarriqu bayna aḥadim-mir-rusulih, 
wa qālū sami`nā wa aṭa`nā,
ghufrānaka Rabbanā wa ilayka ‘l-maṣīr. 
Lā yukallifu ‘llāhu nafsan illā wus`ahā, 
lahā mā kasabat wa `alayhā mak-tasabat, 
Rabbanā lā tu'ākhidhnā in nasīnā aw akhta'nā, 
Rabbanā wa lā taḥmil `alaynā iṣran kamā ḥamaltahu `alal-ladhīna min qablinā, 
Rabbanā wa lā tuḥammilnā mā lā ṭāqata lanā bih, 
wa`fu `annā, waghfir lanā, warḥamnā, 
Anta mawlānā fanṣurnā `ala ‘l-qawmi ‘l-kāfirīn.


The Messenger believes in what has been sent down to him from his Lord, and so do the believers. 
Each one believes in Allah, His Angels, His Books, and His Messengers. 
They say: "We make no distinction between any of His Messengers," 
and they say: "We hear, and we obey. 
(We seek) Your Forgiveness, our Lord, and to You is the return." 
Allah burdens not a person beyond what he can bear. 
He gets rewarded for that (good) which he has earned, and he is punished for that (evil) which he has earned. 
Our Lord! Punish us not if we forget or fall into error. 
Our Lord! Lay not on us a burden like that which You did lay on those before us. 
Our Lord! Put not on us a burden greater than we have the strength to bear. 
Pardon us and grant us forgiveness. Have mercy on us. 
You are our Protector, and help us against the disbelieving people.

Reference:
Al-Baqarah 2:285-6. These two Verses will be sufficient for anyone who 
recites them at night before sleeping. Al-Bukhari, cf. Al-Asqalani, 
Fathul-Bari.9/94, Muslim 1/554.

Chapter: Before sleeping