Recite the du'a for light

بِتُّ عِنْدَ مَيْمُونَةَ فَقَامَ النَّبِيُّ صلى الله عليه وسلم فَأَتَى حَاجَتَهُ، غَسَلَ وَجْهَهُ وَيَدَيْهِ، ثُمَّ نَامَ، ثُمَّ قَامَ فَأَتَى الْقِرْبَةَ فَأَطْلَقَ شِنَاقَهَا، ثُمَّ تَوَضَّأَ وُضُوءًا بَيْنَ وُضُوءَيْنِ لَمْ يُكْثِرْ، وَقَدْ أَبْلَغَ، فَصَلَّى، فَقُمْتُ فَتَمَطَّيْتُ كَرَاهِيَةَ أَنْ يَرَى أَنِّي كُنْتُ أَتَّقِيهِ، فَتَوَضَّأْتُ، فَقَامَ يُصَلِّي، فَقُمْتُ عَنْ يَسَارِهِ، فَأَخَذَ بِأُذُنِي فَأَدَارَنِي عَنْ يَمِينِهِ، فَتَتَامَّتْ صَلاَتُهُ ثَلاَثَ عَشْرَةَ رَكْعَةً ثُمَّ اضْطَجَعَ فَنَامَ حَتَّى نَفَخَ ـ وَكَانَ إِذَا نَامَ نَفَخَ ـ فَآذَنَهُ بِلاَلٌ بِالصَّلاَةِ، فَصَلَّى وَلَمْ يَتَوَضَّأْ، وَكَانَ يَقُولُ فِي دُعَائِهِ ‏ "‏ اللَّهُمَّ اجْعَلْ فِي قَلْبِي نُورًا، وَفِي بَصَرِي نُورًا، وَفِي سَمْعِي نُورًا، وَعَنْ يَمِينِي نُورًا، وَعَنْ يَسَارِي نُورًا، وَفَوْقِي نُورًا، وَتَحْتِي نُورًا، وَأَمَامِي نُورًا، وَخَلْفِي نُورًا، وَاجْعَلْ لِي نُورًا ‏"‏‏.‏ قَالَ كُرَيْبٌ وَسَبْعٌ فِي التَّابُوتِ‏.‏ فَلَقِيتُ رَجُلاً مِنْ وَلَدِ الْعَبَّاسِ فَحَدَّثَنِي بِهِنَّ، فَذَكَرَ عَصَبِي وَلَحْمِي وَدَمِي وَشَعَرِي وَبَشَرِي، وَذَكَرَ خَصْلَتَيْنِ‏.

“One night I slept at the house of Maimuna. The Prophet ﷺ woke up, answered the call of nature, washed his face and hands, and then slept. He got up (late at night), went to a water skin, opened the mouth thereof and performed ablution not using much water, yet he washed all the parts properly and then offered the prayer. I got up and straightened my back in order that the Prophet ﷺ might not feel that I was watching him, and then I performed the ablution, and when he got up to offer the prayer, I stood on his left. He caught hold of my ear and brought me over to his right side. He offered thirteen rak`at in all and then lay down and slept till he started blowing out his breath as he used to do when he slept. In the meantime Bilal informed the Prophet ﷺ of the approaching time for the (Fajr) prayer, and the Prophet offered the Fajr (Morning) prayer without performing new ablution. He used to say in his invocation, Allahumma ij`al fi qalbi nuran wa fi basari nuran, wa fi sam`i nuran, wa`an yamini nuran, wa`an yasari nuran, wa fawqi nuran, wa tahti nuran, wa amami nuran, wa khalfi nuran, waj`al li nuran." Kuraib (a sub narrator) said, "I have forgotten seven other words, (which the Prophet ﷺ mentioned in this invocation). I met a man from the offspring of Al-`Abbas and he narrated those seven things to me, mentioning, '(Let there be light in) my nerves, my flesh, my blood, my hair and my body,' and he also mentioned two other things”