‘Umar said to Abu Musa : I do not blame you, but the matter of transmitting a tradition from the Messenger of Allah (May peace be upon him) is serious.
حَدَّثَنَا هِشَامٌ أَبُو مَرْوَانَ، وَمُحَمَّدُ بْنُ الْمُثَنَّى، - الْمَعْنَى - قَالَ مُحَمَّدُ بْنُ الْمُثَنَّى حَدَّثَنَا الْوَلِيدُ بْنُ مُسْلِمٍ، حَدَّثَنَا الأَوْزَاعِيُّ، قَالَ سَمِعْتُ يَحْيَى بْنَ أَبِي كَثِيرٍ، يَقُولُ حَدَّثَنِي مُحَمَّدُ بْنُ عَبْدِ الرَّحْمَنِ بْنِ أَسْعَدَ بْنِ زُرَارَةَ، عَنْ قَيْسِ بْنِ سَعْدٍ، قَالَ زَارَنَا رَسُولُ اللَّهِ صلى الله عليه وسلم فِي مَنْزِلِنَا فَقَالَ " السَّلاَمُ عَلَيْكُمْ وَرَحْمَةُ اللَّهِ " . فَرَدَّ سَعْدٌ رَدًّا خَفِيًّا . قَالَ قَيْسٌ فَقُلْتُ أَلاَ تَأْذَنُ لِرَسُولِ اللَّهِ صلى الله عليه وسلم . فَقَالَ ذَرْهُ يُكْثِرْ عَلَيْنَا مِنَ السَّلاَمِ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " السَّلاَمُ عَلَيْكُمْ وَرَحْمَةُ اللَّهِ " . فَرَدَّ سَعْدٌ رَدًّا خَفِيًّا ثُمَّ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " السَّلاَمُ عَلَيْكُمْ وَرَحْمَةُ اللَّهِ " . ثُمَّ رَجَعَ رَسُولُ اللَّهِ صلى الله عليه وسلم وَاتَّبَعَهُ سَعْدٌ فَقَالَ يَا رَسُولَ اللَّهِ إِنِّي كُنْتُ أَسْمَعُ تَسْلِيمَكَ وَأَرُدُّ عَلَيْكَ رَدًّا خَفِيًّا لِتُكْثِرَ عَلَيْنَا مِنَ السَّلاَمِ . قَالَ فَانْصَرَفَ مَعَهُ رَسُولُ اللَّهِ صلى الله عليه وسلم فَأَمَرَ لَهُ سَعْدٌ بِغِسْلٍ فَاغْتَسَلَ ثُمَّ نَاوَلَهُ مِلْحَفَةً مَصْبُوغَةً بِزَعْفَرَانٍ أَوْ وَرْسٍ فَاشْتَمَلَ بِهَا ثُمَّ رَفَعَ رَسُولُ اللَّهِ صلى الله عليه وسلم يَدَيْهِ وَهُوَ يَقُولُ " اللَّهُمَّ اجْعَلْ صَلَوَاتِكَ وَرَحْمَتَكَ عَلَى آلِ سَعْدِ بْنِ عُبَادَةَ " . قَالَ ثُمَّ أَصَابَ رَسُولُ اللَّهِ صلى الله عليه وسلم مِنَ الطَّعَامِ فَلَمَّا أَرَادَ الاِنْصِرَافَ قَرَّبَ لَهُ سَعْدٌ حِمَارًا قَدْ وَطَّأَ عَلَيْهِ بِقَطِيفَةٍ فَرَكِبَ رَسُولُ اللَّهِ صلى الله عليه وسلم فَقَالَ سَعْدٌ يَا قَيْسُ اصْحَبْ رَسُولَ اللَّهِ صلى الله عليه وسلم . قَالَ قَيْسٌ فَقَالَ لِي رَسُولُ اللَّهِ صلى الله عليه وسلم " ارْكَبْ " . فَأَبَيْتُ ثُمَّ قَالَ " إِمَّا أَنْ تَرْكَبَ وَإِمَّا أَنْ تَنْصَرِفَ " . قَالَ فَانْصَرَفْتُ . قَالَ هِشَامٌ أَبُو مَرْوَانَ عَنْ مُحَمَّدِ بْنِ عَبْدِ الرَّحْمَنِ بْنِ أَسْعَدَ بْنِ زُرَارَةَ . قَالَ أَبُو دَاوُدَ رَوَاهُ عُمَرُ بْنُ عَبْدِ الْوَاحِدِ وَابْنُ سَمَاعَةَ عَنِ الأَوْزَاعِيِّ مُرْسَلاً وَلَمْ يَذْكُرَا قَيْسَ بْنَ سَعْدٍ .
The Messenger of Allah (ﷺ) came to visit us in our house, and said: Peace and Allah's mercy be upon you! Sa'd returned the greeting in a lower tone. Qays said: I said: Do you not grant permission to the Messenger of Allah (ﷺ) to enter? He said: Leave him, he will give us many greetings. The Messenger of Allah (ﷺ) then said: Peace and Allah's mercy be upon you! Sa'd again responded in a lower tone. The Messenger of Allah (ﷺ) again said: Peace and Allah's mercy be upon you! So the Messenger of Allah (ﷺ) went away. Sa'd went after him and said: Messenger of Allah! I heard your greetings and responded in a lower tone so that you might give us many greetings. The Messenger of Allah (ﷺ) returned with him. Sa'd then offered to prepare bath-water for him, and he took a bath. He then gave him a long wrapper dyed with saffron or wars and he wrapped himself in it. The Messenger of Allah (ﷺ) then raised his hands and said: O Allah, bestow Thy blessings and mercy on the family of Sa'd ibn Ubadah! The Messenger of Allah (ﷺ) then shared their meals. When he intended to return, Sa'd brought near him an ass which was covered with a blanket. The Messenger of Allah (ﷺ) mounted it. Sa'd said: O Qays, accompany the Messenger of Allah. Qays said: The Messenger of Allah (ﷺ) said to me: Ride. But I refused. He again said: Either ride or go away. He said: So I went away. Hisham said: AbuMarwan (transmitted) from Muhammad ibn AbdurRahman ibn As'ad ibn Zurarah. Abu Dawud said: 'Umar b. 'Abd al-Wahid and Ibn Sama'ah transmitted it from al-Awzai' in mursal form (the ling of the Companion being missing), and they did not mention Qais b. Sa'd.
When the Messenger of Allah (ﷺ) came to some people's door, he did not face it squarely, but faced the right or left corner, and said: Peace be upon you! peace be upon you! That was because there were no curtains on the doors of the house at that time.
I went out with the (Messenger of Allah (ﷺ) until I entered a garden, he said: Keep on closing the door. The door was then closed. I then said: Who is there ? He then narrated the rest of the tradition. Abu Dawud said: That is to say, the tradition of Abu Musa al-Ash'ari. In this version he said: "He then knocked at the door."
The Prophet (ﷺ) said: When one of you is invited to take meals and comes along with the messenger, that serves as permission for him to enter. Abu 'Ali al-Lu'lu said: I heard Abu Dawud say: Qatadah did not hear anything from Abu Rafi'.
Most of the people did not act upon the verse about asking permission to enter the house. I have commanded this slave-girl of mine to ask my permission to enter. Abu Dawud said: 'Ata also transmitted it from Ibn 'Abbas in a similar way. He commanded to act upon this.
Ikrimah said: A group of people from Iraq said: Ibn Abbas, what is your opinion about the verse in which we have been commanded whatever we have been commanded, but no one acts upon it? The word of Allah, Most High, reads: "O ye who believe! Let those whom your right hands possess, and the (children) among you, who have not come of age, ask your permission (before) they enter your presence on three occasions: before morning prayer, while you are undressing for the noonday heat, and after late-night prayer. These are your three times of undress; outside those times it is not wrong for you or for them to move about." Al-Qa'nabi recited the verse up to "full of knowledge and wisdom". Ibn Abbas said: Allah is Most Clement and Most Merciful to the believers. He loves concealment. The people had neither curtains nor curtained canopies in their houses. Sometimes a servant, a child or a female orphan of a man entered while the man was having sexual intercourse with his wife. So Allah commanded them to ask permission in those times of undress. Then Allah brought them curtains and all good things. But I did not see anyone following it after that. Abu Dawud said: The tradition of 'Ubaid Allah and of 'Ata, weakens this tradition.