[Machine] Regarding him (the Prophet), if something comes to you that is not in the Book of Allah, then refer to the Sunnah of the Messenger of Allah ﷺ and follow it. If something comes to you that is not in the Book of Allah and there is no Sunnah from the Messenger of Allah ﷺ regarding it, then look at what the people have agreed upon and follow it. However, if something comes to you that is not in the Book of Allah and there is no Sunnah of the Messenger of Allah ﷺ about it, and no one before you has spoken about it, then choose whichever of the two options you wish: if you wish, you may exert your own effort and come to a conclusion, and proceed accordingly. If you wish, you may delay making a decision. And I do not see any delay in taking a decision except that it is better for you.  

عَنْهُ الرِّجَالُ فَإِنْ جَاءَكَ مَا لَيْسَ فِي كِتَابِ اللَّهِ فَانْظُرْ سُنَّةَ رَسُولِ اللَّهِ ﷺ فَاقْضِ بِهَا فَإِنْ جَاءَكَ مَا لَيْسَ فِي كِتَابِ اللَّهِ وَلَمْ يَكُنْ فِيهِ سُنَّةٌ مِنْ رَسُولِ اللَّهِ ﷺ فَانْظُرْ مَا اجْتَمَعَ عَلَيْهِ النَّاسُ فَخُذْ بِهِ فَإِنْ جَاءَكَ مَا لَيْسَ فِي كِتَابِ اللَّهِ وَلَمْ يَكُنْ فِي سُنَّةِ رَسُولِ اللَّهِ ﷺ وَلَمْ يَتَكَلَّمْ فِيهِ أَحَدٌ قَبْلَكَ فَاخْتَرْ أَيَّ الْأَمْرَيْنِ شِئْتَ إِنْ شِئْتَ أَنْ تَجْتَهِدَ برأْيكَ ثُمَّ تَقَدَّمَ فَتَقَدَّمْ وَإِنْ شِئْتَ أَنْ تتأخَّرَ فَتَأَخَّرْ وَلَا أَرَى التَّأَخُّرَ إِلَّا خَيْرًا لَكَ  

[Machine] That Umar ibn Al-Khattab wrote to him: "If a matter comes to you in the Book of Allah, then judge according to it and do not let people distract you from it. But if something comes to you that is not in the Book of Allah, then look to the Sunnah of the Messenger of Allah and judge according to it. And if something comes to you that is not in the Book of Allah and there is no Sunnah from the Messenger of Allah concerning it, then look to what the people have agreed upon and follow it. And if something comes to you that is not in the Book of Allah, there is no Sunnah from the Messenger of Allah concerning it, and no one before you has spoken about it, then choose whichever of the two options you wish: if you want, make your own effort and then make a decision accordingly, and if you want, delay making a decision. And I do not see delaying as anything other than good for you."  

أَنَّ عُمَرَ بْنَ الْخَطَّابِ ؓ كَتَبَ إِلَيْهِ إِذَا جَاءَكُمْ أَمْرٌ فِي كِتَابِ اللهِ ﷻ فَاقْضِ بِهِ وَلَا يَلْفِتَنَّكَ عَنْهُ الرِّجَالُ فَإِنْ أَتَاكَ مَا لَيْسَ فِي كِتَابِ اللهِ فَانْظُرْ سُنَّةَ رَسُولِ اللهِ ﷺ فَاقْضِ بِهَا فَإِنْ جَاءَكَ مَا لَيْسَ فِي كِتَابِ اللهِ وَلَمْ يَكُنْ فِيهِ سُنَّةٌ مِنْ رَسُولِ اللهِ ﷺ فَانْظُرْ مَا اجْتَمَعَ عَلَيْهِ النَّاسُ فَخُذْ بِهِ فَإِنْ جَاءَكَ مَا لَيْسَ فِي كِتَابِ اللهِ وَلَمْ يَكُنْ فِيهِ سُنَّةٌ مِنْ رَسُولِ اللهِ ﷺ وَلَمْ يَتَكَلَّمْ فِيهِ أَحَدٌ قَبْلَكَ فَاخْتَرْ أِيَّ الْأَمْرَيْنِ شِئْتَ إِنْ شِئْتَ أَنْ تَجْتَهِدَ بِرَأْيِكَ ثُمَّ تُقَدِّمَ فَتُقَدِّمَ وَإِنْ شِئْتَ أَنْ تُأَخِّرَ فَتُأَخِّرَ وَلَا أَرَى التَّأَخُّرَ إِلَّا خَيْرًا لَكَ  

"عَنِ الشَّعْبِىِّ قَاَل: كَتَبَ عُمَرُ إِلَى شُرَيْحٍ: إِذَا أَتَاكَ أَمْرٌ فِى كِتَابِ اللهِ وَكَانَ في سُنَّةِ رَسُول اللهِ ﷺ فَاقْضِ بِهِ (ولاَ يَلْفِتَنَّكَ الرِّجَالُ عنه) فإنْ لَمْ يَكُنْ في كِتَابِ الله وَكانَ في سُنَّةِ رَسُولِهِ فَاقْضِ به (فإِن لم يكن في كتَاب اللهِ، وَكان في سُنَّة رسول اللهِ فَاقْضِ بما قَضىَ به أئمة الهدى)، فَإِنْ لَمْ يَكُنْ في كِتابِ اللهِ وَلاَ في سُنَّةِ رَسُولِهِ وَلاَ فِيما قَضى بِه أَئِمَّةُ الْهُدَى فَأَنْتَ بِالْخِيَارِ إِنْ شِئْتَ تَجْتَهِدُ رَأيَكَ، وَإِنْ شِئْتَ أَنْ تُؤامِرَنِى، وَلاَ أَرَى لك مُؤامَرَتَكَ إِيَّاىَ إلاَّ أَسْلَمَ لَكَ".