When Allah's Apostle ﷺ contracted marriage with Zainab (Allah be pleased with bet), Umm Sulaim sent him hats in a vessel of stone as a gift. Anas stated that Messenger of Allah ﷺ said to him: Go and invite on my behalf all the Muslims whom you meet. So I invited on his behalf everyone whom I met. They entered (his house) and they ate and went out. And Messenger of Allah ﷺ had kept his hand on the food, and he invoked blessing on that, and said whatever Allah wished him to say, and none whom I met was left uninvited. They ate to their fill and went out, but a group among them remained there and was engaged in lengthy discussion. Allah's Apostle ﷺ felt shy of saying them anything. So he went out and left them in his house and Allah the Great and Majestic revealed this verse:" 0 you who believe, enter not the houses of the Prophet unless permission is given to you for a meal, not waiting for its cooking being finished." Qatada (instead of using the word Ghaira Nazirina) used the word Ghaira Mutahayyinina (i. e. not waiting for the time of the food). But when you are invited, enter..." up to this verse. This is purer for your hearts and their hearts.  

لَمَّا تَزَوَّجَ النَّبِيُّ ﷺ زَيْنَبَ أَهْدَتْ لَهُ أُمُّ سُلَيْمٍ حَيْسًا فِي تَوْرٍ مِنْ حِجَارَةٍ فَقَالَ أَنَسٌ فَقَالَ رَسُولُ اللَّهِ ﷺ اذْهَبْ فَادْعُ لِي مَنْ لَقِيتَ مِنَ الْمُسْلِمِينَ فَدَعَوْتُ لَهُ مَنْ لَقِيتُ فَجَعَلُوا يَدْخُلُونَ عَلَيْهِ فَيَأْكُلُونَ وَيَخْرُجُونَ وَوَضَعَ النَّبِيُّ ﷺ يَدَهُ عَلَى الطَّعَامِ فَدَعَا فِيهِ وَقَالَ فِيهِ مَا شَاءَ اللَّهُ أَنْ يَقُولَ وَلَمْ أَدَعْ أَحَدًا لَقِيتُهُ إِلاَّ دَعَوْتُهُ فَأَكَلُوا حَتَّى شَبِعُوا وَخَرَجُوا وَبَقِيَ طَائِفَةٌ مِنْهُمْ فَأَطَالُوا عَلَيْهِ الْحَدِيثَ فَجَعَلَ النَّبِيُّ ﷺ يَسْتَحْيِي مِنْهُمْ أَنْ يَقُولَ لَهُمْ شَيْئًا فَخَرَجَ وَتَرَكَهُمْ فِي الْبَيْتِ فَأَنْزَلَ اللَّهُ ﷻ { يَا أَيُّهَا الَّذِينَ آمَنُوا لاَ تَدْخُلُوا بُيُوتَ النَّبِيِّ إِلاَّ أَنْ يُؤْذَنَ لَكُمْ إِلَى طَعَامٍ غَيْرَ نَاظِرِينَ إِنَاهُ} قَالَ قَتَادَةُ غَيْرَ مُتَحَيِّنِينَ طَعَامًا وَلَكِنْ إِذَا دُعِيتُمْ فَادْخُلُوا حَتَّى بَلَغَ { ذَلِكُمْ أَطْهَرُ لِقُلُوبِكُمْ وَقُلُوبِهِنَّ}  

[Machine] "I am the most knowledgeable of people or the most knowledgeable of people regarding the verse of Hijab. The Prophet ﷺ married Zainab bint Jahsh and slaughtered a sheep, then he called his companions and they ate and sat talking. The Prophet ﷺ would go out and enter while they were sitting, then he would go out and stay for as long as Allah wished, and he would return while they were sitting, and Zainab would be sitting in a corner of the house. The Prophet ﷺ felt shy to say anything to them, so the verse was revealed: 'O you who have believed, do not enter the houses of the Prophet except when you are permitted for a meal, without awaiting its readiness. But when you are invited, then enter' [Surah Al-Ahzab, verse 53] The verses continued until the statement 'and ask them from behind a partition' [Surah Al-Ahzab, verse 53]. So the Messenger of Allah ﷺ commanded the Hijab to be in place and it was struck."  

أَنَا أَعْلَمُ النَّاسِ أَوْ مِنْ أَعْلَمِ النَّاسِ بِآيَةِ الْحِجَابِ تَزَوَّجَ النَّبِيُّ ﷺ زَيْنَبَ ابْنَةَ جَحْشٍ فَذَبَحَ شَاةً فَدَعَا أَصْحَابَهُ فَأَكَلُوا وَقَعَدُوا يَتَحَدَّثُونَ وَجَعَلَ النَّبِيُّ ﷺ يَخْرُجُ وَيَدْخُلُ وَهُمْ قُعُودٌ ثُمَّ يَخْرُجُ فَيَمْكُثُ مَا شَاءَ اللهُ وَيَرْجِعُ وَهُمْ قُعُودٌ وَزَيْنَبُ قَاعِدَةٌ فِي نَاحِيَةِ الْبَيْتِ وَجَعَلَ النَّبِيُّ ﷺ يَسْتَحْيِي مِنْهُمْ أَنْ يَقُولَ لَهُمْ شَيْئًا فَنَزَلَتْ {يَا أَيُّهَا الَّذِينَ آمَنُوا لَا تَدْخُلُوابُيُوتَ النَّبِيِّ إِلَّا أَنْ يُؤْذَنَ لَكُمْ إِلَى طَعَامٍ غَيْرَ نَاظِرِينَ إِنَاهُ وَلَكِنْ إِذَا دُعِيتُمْ فَادْخُلُوا} [الأحزاب 53] الْآيَاتُ إِلَى قَوْلِهِ ﷻ {فَاسْأَلُوهُنَّ مِنْ وَرَاءِ حِجَابٍ} [الأحزاب 53] قَالَ فَأَمَرَ رَسُولُ اللهِ ﷺ بِالْحِجَابِ مَكَانَهُ فَضُرِبَ  

[Machine] When the Prophet ﷺ married Zainab, Umm Sulaim was sent to him with a bowl of food made from stones. Anas said, "The Prophet ﷺ told me, 'Go and invite whoever you meet from the Muslims.'" So, I went and I did not see anyone except that I invited them. Anas said, "The Prophet ﷺ put his hand in the food, supplicated over it, and said, 'Whatever Allah wishes.'" He said, "So they started eating and taking (from the food), and a group remained in the house. The Prophet ﷺ felt shy to ask them to leave and they prolonged their conversation. So, the Messenger of Allah ﷺ left them in the house and Allah revealed, 'O you who have believed, do not enter the houses of the Prophet except when you are permitted for a meal, without awaiting its readiness. But when you are invited, then enter; and when you have eaten, disperse without seeking to remain for conversation. Indeed, that (behavior) was troubling the Prophet, and he is shy of (dismissing) you. But Allah is not shy of the truth. And when you ask (his wives) for something, ask them from behind a partition. That is purer for your hearts and their hearts.'"  

لَمَّا تَزَوَّجَ النَّبِيُّ ﷺ زَيْنَبَ بَعَثَتْ أُمُّ سُلَيْمٍ حَيْسًا فِي تَوْرٍ مِنْ حِجَارَةٍ قَالَ أَنَسٌ فَقَالَ لِيَ النَّبِيُّ ﷺ «اذْهَبْ فَادْعُ مَنْ لَقِيتَ مِنَ الْمُسْلِمِينَ» فَذَهَبْتُ فَمَا رَأَيْتُ أَحَدًا إِلَّا دَعْوَتُهُ قَالَ وَوَضَعَ النَّبِيُّ ﷺ يَدَهُ فِي الطَّعَامِ وَدَعَا فِيهِ وَقَالَ «مَا شَاءَ اللَّهُ» قَالَ فَجَعَلُوا يَأْكُلُونَ وَيَخْرُجُونَ وَبَقِيَتْ طَائِفَةٌ فِي الْبَيْتِ فَجَعَلَ النَّبِيُّ ﷺ يَسْتَحِي مِنْهُمْ وَأَطَالُوا الْحَدِيثَ فَخَرَجَ رَسُولُ اللَّهِ ﷺ وَتَرَكَهُمْ فِي الْبَيْتِ فَأَنْزَلَ اللَّهُ {يَا أَيُّهَا الَّذِينَ آمَنُوا لَا تَدْخُلُوا بُيُوتَ النَّبِيِّ إِلَّا أَنْ يُؤْذَنَ لَكُمْ إِلَى طَعَامٍ غَيْرَ نَاظِرِينَ إِنَاهُ} [الأحزاب 53] يَعْنِي غَيْرَ مُتَحَيِّنِينَ حَتَّى بَلَغَ {ذَلِكُمْ أَطْهُرُ لِقُلُوبِكُمْ وَقُلُوبِهِنَّ} [الأحزاب 53]  

When Allah's Apostle ﷺ contracted marriage with Zainab (Allah be pleased with bet), Umm Sulaim sent him hats in a vessel of stone as a gift. Anas stated that Messenger of Allah ﷺ said to him: Go and invite on my behalf all the Muslims whom you meet. So I invited on his behalf everyone whom I met. They entered (his house) and they ate and went out. And Messenger of Allah ﷺ had kept his hand on the food, and he invoked blessing on that, and said whatever Allah wished him to say, and none whom I met was left uninvited. They ate to their fill and went out, but a group among them remained there and was engaged in lengthy discussion. Allah's Apostle ﷺ felt shy of saying them anything. So he went out and left them in his house and Allah the Great and Majestic revealed this verse:" 0 you who believe, enter not the houses of the Prophet unless permission is given to you for a meal, not waiting for its cooking being finished." Qatada (instead of using the word Ghaira Nazirina) used the word Ghaira Mutahayyinina (i. e. not waiting for the time of the food). But when you are invited, enter..." up to this verse. This is purer for your hearts and their hearts. (Using translation from Muslim 1428h)   

لَمَّا تَزَوَّجَ النَّبِيُّ ﷺ زَيْنَبَ أَهْدَتْ إِلَيْهِ أُمُّ سُلَيْمٍ حَيْسًا فِي تَوْرٍ مِنْ حِجَارَةٍ قَالَ أَنَسٌ قَالَ لِي «اذْهَبْ فَادْعُ مَنْ لَقِيتَ مِنَ الْمُسْلِمِينَ» فَدَعَوْتُ لَهُ مَنْ لَقِيتُ فَجَعَلُوا يَدْخُلُونَ فَيَأْكُلُونَ وَيَخْرُجُونَ وَوَضَعَ النَّبِيُّ ﷺ يَدَهُ فِي الطَّعَامِ فَدَعَا فِيهِ وَقَالَ مَا شَاءَ اللهُ أَنْ يَقُولَ وَلَمْ أَدَعْ أَحَدًا لَقِيتُهُ إِلَّا دَعَوْتُهُ فَأَكَلُوا حَتَّى شَبِعُوا وَخَرَجُوا وَبَقِيَ طَائِفَةٌ مِنْهُمْ فَأَطَالُوا عَلَيْهِ الْحَدِيثَ فَجَعَلَ النَّبِيُّ ﷺ يَسْتَحْيِي أَنْ يَقُولَ لَهُمْ شَيْئًا فَخَرَجَ وَتَرَكَهُمْ فِي الْبَيْتِ فَأَنْزَلَ اللهُ ﷻ {يَا أَيُّهَا الَّذِينَ آمَنُوا لَا تَدْخُلُوا بُيُوتَ النَّبِيِّ إِلَّا أَنْ يُؤْذَنَ لَكُمْ إِلَى طَعَامٍ غَيْرَ نَاظِرِينَ إِنَاهُ} [الأحزاب 53]