The Prophet ﷺ said, "If somebody claims to be the son of any other than his real father knowingly, he but disbelieves in Allah, and if somebody claims to belong to some folk to whom he does not belong, let such a person take his place in the (Hell) Fire."  

أَنَّهُ سَمِعَ النَّبِيَّ ﷺ يَقُولُ لَيْسَ مِنْ رَجُلٍ ادَّعَى لِغَيْرِ أَبِيهِ وَهْوَ يَعْلَمُهُ إِلاَّ كَفَرَ وَمَنِ ادَّعَى قَوْمًا لَيْسَ لَهُ فِيهِمْ فَلْيَتَبَوَّأْ مَقْعَدَهُ مِنَ النَّارِ  

Messenger of Allah ﷺ said, "Verily, one of the worst lies is to claim falsely to be the son of someone other than one's real father, or to claim to have had a dream one has not had, or to attribute to me what I have not said."  

قَالَ رَسُولُ اللَّهِ ﷺ إِنَّ مِنْ أَعْظَمِ الْفِرَى أَنْ يَدَّعِيَ الرَّجُلُ إِلَى غَيْرِ أَبِيهِ أَوْ يُرِيَ عَيْنَهُ مَا لَمْ تَرَ أَوْ يَقُولُ عَلَى رَسُولِ اللَّهِ ﷺ مَا لَمْ يَقُلْ  

The delegates of ʿAbd-ul-Qais came to Messenger of Allah ﷺ and said, "O Messenger of Allah ﷺ! We are from the tribe of Rabiʿa and the infidels of Mudar tribe stand between us and you, so that we cannot come to you except in the Sacred Months. Therefore we would like you to give us some instructions which we may follow and convey to our people staying behind us." The Prophet ﷺ said, "I order you to observe four things and forbid you (to do) four things: (I order you) to believe in Allah testifying that None has the right to be worshipped except Allah; to offer the prayer perfectly; to pay the Zakat; and to give one-fifth of the war booty to Allah. And I forbid you to use Ad-Dubba, Al-Hantam, An-Naqir and Al- Muzaffat." (These are names of utensils in which alcoholic drinks were served.)  

سَمِعْتُ ابْنَ عَبَّاسٍ ؓ يَقُولُ قَدِمَ وَفْدُ عَبْدِ الْقَيْسِ عَلَى رَسُولِ اللَّهِ ﷺ فَقَالُوا يَا رَسُولَ اللَّهِ إِنَّا مِنْ هَذَا الْحَىِّ مِنْ رَبِيعَةَ قَدْ حَالَتْ بَيْنَنَا وَبَيْنَكَ كُفَّارُ مُضَرَ فَلَسْنَا نَخْلُصُ إِلَيْكَ إِلاَّ فِي كُلِّ شَهْرٍ حَرَامٍ فَلَوْ أَمَرْتَنَا بِأَمْرٍ نَأْخُذُهُ عَنْكَ وَنُبَلِّغُهُ مَنْ وَرَاءَنَا قَالَ آمُرُكُمْ بِأَرْبَعٍ وَأَنْهَاكُمْ عَنْ أَرْبَعٍ الإِيمَانِ بِاللَّهِ شَهَادَةِ أَنْ لاَ إِلَهَ إِلاَّ اللَّهُ وَإِقَامِ الصَّلاَةِ وَإِيتَاءِ الزَّكَاةِ وَأَنْ تُؤَدُّوا إِلَى اللَّهِ خُمْسَ مَا غَنِمْتُمْ وَأَنْهَاكُمْ عَنِ الدُّبَّاءِ وَالْحَنْتَمِ وَالنَّقِيرِ وَالْمُزَفَّتِ  

I heard Messenger of Allah ﷺ on the pulpit saying, "Verily, afflictions (will start) from here," pointing towards the east, "whence the side of the head of Satan comes out."  

سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ وَهْوَ عَلَى الْمِنْبَرِ أَلاَ إِنَّ الْفِتْنَةَ هَا هُنَا يُشِيرُ إِلَى الْمَشْرِقِ مِنْ حَيْثُ يَطْلُعُ قَرْنُ الشَّيْطَانِ