when any of you goes to his bed, he should dust his bedding with the inner extremity of his lower garment, for he does not know what has come on it since he left it. He should then lie down on his right side and say: In Thy name, my mercy on it, but if Thou lettest it go, guard it with that which Thou guardest Thy upright servants.  

قَالَ رَسُولُ اللَّهِ ﷺ إِذَا أَوَى أَحَدُكُمْ إِلَى فِرَاشِهِ فَلْيَنْفُضْ فِرَاشَهُ بِدَاخِلَةِ إِزَارِهِ فَإِنَّهُ لاَ يَدْرِي مَا خَلَفَهُ عَلَيْهِ ثُمَّ لْيَضْطَجِعْ عَلَى شِقِّهِ الأَيْمَنِ ثُمَّ لْيَقُلْ بِاسْمِكَ رَبِّي وَضَعْتُ جَنْبِي وَبِكَ أَرْفَعُهُ إِنْ أَمْسَكْتَ نَفْسِي فَارْحَمْهَا وَإِنْ أَرْسَلْتَهَا فَاحْفَظْهَا بِمَا تَحْفَظُ بِهِ عِبَادَكَ الصَّالِحِينَ  

The Prophet ﷺ said, "When anyone of you goes to bed, he should dust it off thrice with the edge of his garment, and say: Bismika Rabbi Wadaʿtu janbi, wa bika arfa'hu. In amsakta nafsi faghfir laha, wa in arsaltaha fahfazha bima tahfaz bihi 'ibadaka-s-salihin." (Using translation from Bukhārī 7393)   

أَنَّ رَسُولَ اللهِ ﷺ قَالَ إِذَا قَامَ أَحَدُكُمْ عَنْ فِرَاشِهِ ثُمَّ رَجَعَ فَلْيَنْفُضْهُ بِصَنِفَةِ ثَوْبِهِ فَإِنَّهُ لَا يَدْرِي مَا خَلَفَهُ فِيهِ بَعْدَهُ ثُمَّ إِذَا اضْطَجَعَ فَلْيَقُلْ بِاسْمِكَ وَضَعْتُ جَنْبِي وَبِكَ أَرْفَعُهُ اللهُمَّ إِنْ أَمْسَكْتَ نَفْسِي فَاغْفِرْ لَهَا وَإِنْ أَرْسَلْتَهَا فَاحْفَظْهَا بِمَا تَحْفَظُ بِهِ الصَّالِحِينَ مِنْ عِبَادِكَ  

when any of you goes to his bed, he should dust his bedding with the inner extremity of his lower garment, for he does not know what has come on it since he left it. He should then lie down on his right side and say: In Thy name, my mercy on it, but if Thou lettest it go, guard it with that which Thou guardest Thy upright servants. (Using translation from Abū Dāʾūd 5050)  

قَالَ رَسُولُ اللهِ ﷺ إِذَا أَوَى أَحَدُكُمْ إِلَى فِرَاشِهِ فَلْيَنْفُضْ فِرَاشَهُ بِدَاخِلَةِ إِزَارِهِ فَإِنَّهُ لَا يَدْرِي مَا خَلَفَهُ عَلَيْهِ ثُمَّ لِيَضْطَجِعْ عَلَى شِقِّهِ الْأَيْمَنِ ثُمَّ يَقُولُ بِاسْمِكَ رَبِّي وَضَعْتُ جَنْبِي وَبِكَ أَرْفَعُهُ إِنْ أَمْسَكْتَ نَفْسِي فَارْحَمْهَا وَإِنْ أَرْسَلْتَهَا فَاحْفَظْهَا بِمَا تَحْفَظُ بِهِ عِبَادَكَ الصَّالِحِينَ  

the Messenger of Allah ﷺ said: “When one of you leaves his bed then returns to it, then let him brush it off with the edge of his Izar three times, for indeed, he does not know what succeeded him upon it after him. When he lies down, let him say: ‘In Your Name, my Lord, I lay my side down, and in Your Name I raise it. And if You take my soul, then have mercy upon it, and if You release it, then protect it with that which You protect Your righteous worshipers (Bismika rabbī waḍaʿtu janbī wa bika arfaʿuhu, fa’in amsakta nafsī farḥamhā wa in arsaltahā faḥfaẓhā bimā taḥfaẓu bihī ʿibādakaṣ-ṣāliḥīn)’ And when he awakens, let him say: All praise is due to Allah, Who healed me in my body, and returned to me my soul, and permitted me to remember Him (Al-ḥamdulillāh alladhī ʿāfānī fī jasadī wa radda ʿalayya rūḥī wa adhina lī bidhikrih).’” (Using translation from Tirmidhī 3401)   

"إِذا قام أحدكُمْ عَنْ فراشه ثُمَّ رَجَع إليه فلينفضْه بِصَنَفِة إزاره ثلاث مرات، فإنه لا يدْرى ما خَلَفه عليه بَعْدَهُ وإذا اضطجع فْليقُلْ: باسمك ربى وضعتُ جَنْبى وبِك أرفعه فإنْ أمْسَكْتَ نفْسِي فارحْمها وإنْ أرسلتها فاحفظهَا بما تحفظُ به عبادكَ الصالحينَ، فإذا استيقظَ فليَقُلْ: الحمدُ لله الَّذي عافانِي في جَسدِى، وَرَد إليَّ رَوْحِى وأذِنَ لي بذكْرِهِ".

(صنفة الإزار بكسر النون طرفه مما يلي طرتّه وقيل: جانبه الذي لا هدب فيه) .  

when any of you goes to his bed, he should dust his bedding with the inner extremity of his lower garment, for he does not know what has come on it since he left it. He should then lie down on his right side and say: In Thy name, my mercy on it, but if Thou lettest it go, guard it with that which Thou guardest Thy upright servants. (Using translation from Abū Dāʾūd 5050)   

"إذَا أَوَى أحدُكم إِلى فِراشه فْلينفُضْه بداخلة إِزَارِه، فإنّه لَا يدْرِى ما خَلفَه [عليه] ثم لْيضطجعْ على شقِّه الأيمنِ ثمّ لْيَقلْ: باسْمكَ ربي وضعتُ جنْبى، وبكَ أرْفُعه إنْ أمسكتَ نفْسى فارْحَمْها، وإنْ أرْسلتَها فاحفظْها بما تحفظُ به عبادَك الصالحين ".