Sahih Muslim Book - 38, Hadith - 5626

حَدَّثَنِي عَمْرُو بْنُ مُحَمَّدِ بْنِ بُكَيْرٍ النَّاقِدُ ، حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ ، حَدَّثَنَا وَاللَّهِ يَزِيدُ بْنُ خُصَيْفَةَ ، عَنْ بُسْرِ بْنِ سَعِيدٍ ، قَالَ: سَمِعْتُ أَبَا سَعِيدٍ الْخُدْرِيَّ ، يَقُولُ : كُنْتُ جَالِسًا بِالْمَدِينَةِ فِي مَجْلِسِ الأَنْصَارِ ، فَأَتَانَا أَبُو مُوسَى فَزِعًا ، أَوْ مَذْعُورًا قُلْنَا: مَا شَأْنُكَ ؟ قَالَ: إِنَّ عُمَرَ أَرْسَلَ إِلَيَّ أَنْ آتِيَهُ ، فَأَتَيْتُ بَابَهُ فَسَلَّمْتُ ثَلاَثًا فَلَمْ يَرُدَّ عَلَيَّ فَرَجَعْتُ فَقَالَ: مَا مَنَعَكَ أَنْ تَأْتِيَنَا ؟ فَقُلْتُ: إِنِّي أَتَيْتُكَ، فَسَلَّمْتُ عَلَى بَابِكَ ثَلاَثًا ، فَلَمْ يَرُدُّوا عَلَيَّ ، فَرَجَعْتُ، وَقَدْ قَالَ رَسُولُ اللهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِذَا اسْتَأْذَنَ أَحَدُكُمْ ثَلاَثًا فَلَمْ يُؤْذَنْ لَهُ ، فَلْيَرْجِعْ فَقَالَ عُمَرُ: أَقِمْ عَلَيْهِ الْبَيِّنَةَ، وَإِلاَّ أَوْجَعْتُكَ. فَقَالَ: أُبَيُّ بْنُ كَعْبٍ:لاَ يَقُومُ مَعَهُ إِلاَّ أَصْغَرُ الْقَوْمِ، قَالَ:أَبُو سَعِيدٍ: قُلْتُ أَنَا أَصْغَرُ الْقَوْمِ، قَالَ: فَاذْهَبْ بِهِ.

Abu Sa'eed Al-Khudri said: "I was sitting in Al-Madinah, in a gathering of the Ansar, when Abu Musa came to us, in a panic, or trembling with fear. We said: 'What is the matter with you?' He said: "Umar sent for me to come to him, and I came to his door and said Salam three times, but he did not answer me, so I went back.' He said: 'What kept you from coming to us?' I said: 'I did come, and I said Salam three times at your door, but you did not answer me, so I went back, because the Messenger of Allah (s.a.w) said: "If one of you asks permission to enter three times and permission is not given to him, let him go back."' 'Umar said: 'Bring proof (of the Prophet (s.a.w) saying that), otherwise I will take you to task.' Ubayy bin Ka'b said: 'No one should go with him but the youngest of the people.'" Abu Sa'eed said: "I ·said: 'I am the youngest of the people.' He said: 'Go with him.'"