I was ten years old when Messenger of Allah ﷺ arrived at Medina. My mother and aunts used to urge me to serve the Prophet ﷺ regularly, and I served him for ten years. When the Prophet ﷺ died I was twenty years old, and I knew about the order of Al-Hijab (veiling of ladies) more than any other person when it was revealed. It was revealed for the first time when Messenger of Allah ﷺ had consummated his marriage with Zainab bint Jahsh. When the day dawned, the Prophet ﷺ was a bridegroom and he invited the people to a banquet, so they came, ate, and then all left except a few who remained with the Prophet ﷺ for a long time. The Prophet ﷺ got up and went out, and I too went out with him so that those people might leave too. The Prophet ﷺ proceeded and so did I, till he came to the threshold of ʿAisha's dwelling place. Then thinking that these people have left by then, he returned and so did I along with him till he entered upon Zainab and behold, they were still sitting and had not gone. So the Prophet ﷺ again went away and I went away along with him. When we reached the threshold of ʿAisha's dwelling place, he thought that they had left, and so he returned and I too, returned along with him and found those people had left. Then the Prophet ﷺ drew a curtain between me and him, and the Verses of Al-Hijab were revealed.  

أَنَّهُ كَانَ ابْنَ عَشْرِ سِنِينَ مَقْدَمَ رَسُولِ اللَّهِ ﷺ الْمَدِينَةَ فَكَانَ أُمَّهَاتِي يُوَاظِبْنَنِي عَلَى خِدْمَةِ النَّبِيِّ ﷺ فَخَدَمْتُهُ عَشْرَ سِنِينَ وَتُوُفِّيَ النَّبِيُّ ﷺ وَأَنَا ابْنُ عِشْرِينَ سَنَةً فَكُنْتُ أَعْلَمَ النَّاسِ بِشَأْنِ الْحِجَابِ حِينَ أُنْزِلَ وَكَانَ أَوَّلَ مَا أُنْزِلَ فِي مُبْتَنَى رَسُولِ اللَّهِ ﷺ بِزَيْنَبَ ابْنَةِ جَحْشٍ أَصْبَحَ النَّبِيُّ ﷺ بِهَا عَرُوسًا فَدَعَا الْقَوْمَ فَأَصَابُوا مِنَ الطَّعَامِ ثُمَّ خَرَجُوا وَبَقِيَ رَهْطٌ مِنْهُمْ عِنْدَ النَّبِيِّ ﷺ فَأَطَالُوا الْمُكْثَ فَقَامَ النَّبِيُّ ﷺ فَخَرَجَ وَخَرَجْتُ مَعَهُ لِكَىْ يَخْرُجُوا فَمَشَى النَّبِيُّ ﷺ وَمَشَيْتُ حَتَّى جَاءَ عَتَبَةَ حُجْرَةِ عَائِشَةَ ثُمَّ ظَنَّ أَنَّهُمْ خَرَجُوا فَرَجَعَ وَرَجَعْتُ مَعَهُ حَتَّى إِذَا دَخَلَ عَلَى زَيْنَبَ فَإِذَا هُمْ جُلُوسٌ لَمْ يَقُومُوا فَرَجَعَ النَّبِيُّ ﷺ وَرَجَعْتُ مَعَهُ حَتَّى إِذَا بَلَغَ عَتَبَةَ حُجْرَةِ عَائِشَةَ وَظَنَّ أَنَّهُمْ خَرَجُوا فَرَجَعَ وَرَجَعْتُ مَعَهُ فَإِذَا هُمْ قَدْ خَرَجُوا فَضَرَبَ النَّبِيُّ ﷺ بَيْنِي وَبَيْنَهُ بِالسِّتْرِ وَأُنْزِلَ الْحِجَابُ  

that he was a boy of ten at the time when the Prophet ﷺ emigrated to Medina. He added: I served Allah's Apostle for ten years (the last part of his life time) and I know more than the people about the occasion whereupon the order of Al-Hijab was revealed (to the Prophet). Ubai b n Kaʿb used to ask me about it. It was revealed (for the first time) during the marriage of Messenger of Allah ﷺ with Zainab bint Jahsh. In the morning, the Prophet ﷺ was a bride-groom of her and he Invited the people, who took their meals and went away, but a group of them remained with Messenger of Allah ﷺ and they prolonged their stay. Messenger of Allah ﷺ got up and went out, and I too, went out along with him till he came to the lintel of ʿAisha's dwelling place. Messenger of Allah ﷺ thought that those people had left by then, so he returned, and I too, returned with him till he entered upon Zainab and found that they were still sitting there and had not yet gone. The Prophet ﷺ went out again, and so did I with him till he reached the lintel of ʿAisha's dwelling place, and then he thought that those people must have left by then, so he returned, and so did I with him, and found those people had gone. At that time the Divine Verse of Al-Hijab was revealed, and the Prophet ﷺ set a screen between me and him (his family).  

أَنَّهُ كَانَ ابْنَ عَشْرِ سِنِينَ مَقْدَمَ رَسُولِ اللَّهِ ﷺ الْمَدِينَةَ فَخَدَمْتُ رَسُولَ اللَّهِ ﷺ عَشْرًا حَيَاتَهُ وَكُنْتُ أَعْلَمَ النَّاسِ بِشَأْنِ الْحِجَابِ حِينَ أُنْزِلَ وَقَدْ كَانَ أُبَىُّ بْنُ كَعْبٍ يَسْأَلُنِي عَنْهُ وَكَانَ أَوَّلَ مَا نَزَلَ فِي مُبْتَنَى رَسُولِ اللَّهِ ﷺ بِزَيْنَبَ ابْنَةِ جَحْشٍ أَصْبَحَ النَّبِيُّ ﷺ بِهَا عَرُوسًا فَدَعَا الْقَوْمَ فَأَصَابُوا مِنَ الطَّعَامِ ثُمَّ خَرَجُوا وَبَقِيَ مِنْهُمْ رَهْطٌ عِنْدَ رَسُولِ اللَّهِ ﷺ فَأَطَالُوا الْمُكْثَ فَقَامَ رَسُولُ اللَّهِ ﷺ فَخَرَجَ وَخَرَجْتُ مَعَهُ كَىْ يَخْرُجُوا فَمَشَى رَسُولُ اللَّهِ ﷺ وَمَشَيْتُ مَعَهُ حَتَّى جَاءَ عَتَبَةَ حُجْرَةِ عَائِشَةَ ثُمَّ ظَنَّ رَسُولُ اللَّهِ ﷺ أَنَّهُمْ خَرَجُوا فَرَجَعَ وَرَجَعْتُ مَعَهُ حَتَّى دَخَلَ عَلَى زَيْنَبَ فَإِذَا هُمْ جُلُوسٌ لَمْ يَتَفَرَّقُوا فَرَجَعَ رَسُولُ اللَّهِ ﷺ وَرَجَعْتُ مَعَهُ حَتَّى بَلَغَ عَتَبَةَ حُجْرَةِ عَائِشَةَ فَظَنَّ أَنْ قَدْ خَرَجُوا فَرَجَعَ وَرَجَعْتُ مَعَهُ فَإِذَا هُمْ قَدْ خَرَجُوا فَأُنْزِلَ آيَةُ الْحِجَابِ فَضَرَبَ بَيْنِي وَبَيْنَهُ سِتْرًا  

I know (about) the Hijab (the order of veiling of women) more than anybody else. Ubai bin Kaʿb used to ask me about it. Messenger of Allah ﷺ became the bridegroom of Zainab bint Jahsh whom he married at Medina. After the sun had risen high in the sky, the Prophet ﷺ invited the people to a meal. Allah's Apostle remained sitting and some people remained sitting with him after the other guests had left. Then Messenger of Allah ﷺ got up and went away, and I too, followed him till he reached the door of ʿAisha's room. Then he thought that the people must have left the place by then, so he returned and I also returned with him. Behold, the people were still sitting at their places. So he went back again for the second time, and I went along with him too. When we reached the door of ʿAisha's room, he returned and I also returned with him to see that the people had left. Thereupon the Prophet ﷺ hung a curtain between me and him and the Verse regarding the order for (veiling of women) Hijab was revealed.  

أَنَا أَعْلَمُ النَّاسِ بِالْحِجَابِ كَانَ أُبَىُّ بْنُ كَعْبٍ يَسْأَلُنِي عَنْهُ أَصْبَحَ رَسُولُ اللَّهِ ﷺ عَرُوسًا بِزَيْنَبَ ابْنَةِ جَحْشٍ وَكَانَ تَزَوَّجَهَا بِالْمَدِينَةِ فَدَعَا النَّاسَ لِلطَّعَامِ بَعْدَ ارْتِفَاعِ النَّهَارِ فَجَلَسَ رَسُولُ اللَّهِ ﷺ وَجَلَسَ مَعَهُ رِجَالٌ بَعْدَ مَا قَامَ الْقَوْمُ حَتَّى قَامَ رَسُولُ اللَّهِ ﷺ فَمَشَى وَمَشَيْتُ مَعَهُ حَتَّى بَلَغَ باب حُجْرَةِ عَائِشَةَ ثُمَّ ظَنَّ أَنَّهُمْ خَرَجُوا فَرَجَعْتُ مَعَهُ فَإِذَا هُمْ جُلُوسٌ مَكَانَهُمْ فَرَجَعَ وَرَجَعْتُ مَعَهُ الثَّانِيَةَ حَتَّى بَلَغَ باب حُجْرَةِ عَائِشَةَ فَرَجَعَ وَرَجَعْتُ مَعَهُ فَإِذَا هُمْ قَامُوا فَضَرَبَ بَيْنِي وَبَيْنَهُ سِتْرًا وَأُنْزِلَ الْحِجَابُ