It was narrated that Sa'd bin Abi Waqqas said: "The Messenger of Allah forbade 'Uthman to be celibate. If he had given him permission we would have castrated ourselves."  

لَقَدْ رَدَّ رَسُولُ اللَّهِ ﷺ عَلَى عُثْمَانَ التَّبَتُّلَ وَلَوْ أَذِنَ لَهُ لاَخْتَصَيْنَا  

It was narrated from 'Aishah that the Messenger of Allah forbade celibacy.  

أَنَّ رَسُولَ اللَّهِ ﷺ نَهَى عَنِ التَّبَتُّلِ  

It was narrated from Samurah bin Jundab that the Prophet forbade celibacy. Abu Abdur-Rahman said: Qatadah is more reliable and better preserves narrations than Ash'ath but the hadith of Ash'ath (here) appears to be the correct one. Allah, Most High, knows best.  

عَنِ النَّبِيِّ ﷺ أَنَّهُ نَهَى عَنِ التَّبَتُّلِ قَالَ أَبُو عَبْدِ الرَّحْمَنِ قَتَادَةُ أَثْبَتُ وَأَحْفَظُ مِنْ أَشْعَثَ وَحَدِيثُ أَشْعَثَ أَشْبَهُ بِالصَّوَابِ وَاللَّهُ تَعَالَى أَعْلَمُ  

It was narrated from Abu Salamah that Abu Hurairah said: "I said: 'O Messenger of Allah, I am a young man and I fear hardship for myself, but I cannot afford to marry; should I castrate myself?'" The Prophet turned away from him until he said it three times. Then the Prophet said: "O Abu Hurairah, the pen is dried concerning what you are going to face, so (it is up to you whether) you castrate yourself or not." Abu Abdur-Rahman (An-Nasai) said: Al-Awzai did not hear this narration from Az-Zuhri, and this hadith is sahih, Yunus reported it from Az-Zuhri.  

قُلْتُ يَا رَسُولَ اللَّهِ إِنِّي رَجُلٌ شَابٌّ قَدْ خَشِيتُ عَلَى نَفْسِي الْعَنَتَ وَلاَ أَجِدُ طَوْلاً أَتَزَوَّجُ النِّسَاءَ أَفَأَخْتَصِي فَأَعْرَضَ عَنْهُ النَّبِيُّ ﷺ حَتَّى قَالَ ثَلاَثًا فَقَالَ النَّبِيُّ ﷺ يَا أَبَا هُرَيْرَةَ جَفَّ الْقَلَمُ بِمَا أَنْتَ لاَقٍ فَاخْتَصِ عَلَى ذَلِكَ أَوْ دَعْ قَالَ أَبُو عَبْدِ الرَّحْمَنِ الأَوْزَاعِيُّ لَمْ يَسْمَعْ هَذَا الْحَدِيثَ مِنَ الزُّهْرِيِّ وَهَذَا حَدِيثٌ صَحِيحٌ قَدْ رَوَاهُ يُونُسُ عَنِ الزُّهْرِيِّ  

It was narrated from Sa'd bin Hisham that he came to the Mother of the Believers, 'Aishah. He said: "I want to ask you about celibacy, what do you think about it?" She said: "Do not do that; have you not heard that Allah, the Mighty and Sublime, says: 'And indeed We sent Messengers before you, and made for them wives and offspring'? So do not be celibate."  

سَمِعْتَ اللَّهَ ﷻ يَقُولُ { وَلَقَدْ أَرْسَلْنَا رُسُلاً مِنْ قَبْلِكَ وَجَعَلْنَا لَهُمْ أَزْوَاجًا وَذُرِّيَّةً } فَلاَ تَتَبَتَّلْ  

It was narrated from Anas that there was a group of the Companions of the Prophet, one of whom said: "I will not marry women." Another said: "I will not eat meat." Another said: "I will not sleep on a bed." Another said: "I will fast and not break my fast." News of that reached the Messenger of Allah and he praised Allah then said: "What is the matter with people who say such and such? But I pray and I sleep, I fast and I break my fast, and I marry women. Whoever turns away from my Sunnah is not of me."  

أَنَّ نَفَرًا مِنْ أَصْحَابِ النَّبِيِّ ﷺ قَالَ بَعْضُهُمْ لاَ أَتَزَوَّجُ النِّسَاءَ وَقَالَ بَعْضُهُمْ لاَ آكُلُ اللَّحْمَ وَقَالَ بَعْضُهُمْ لاَ أَنَامُ عَلَى فِرَاشٍ وَقَالَ بَعْضُهُمْ أَصُومُ فَلاَ أُفْطِرُ فَبَلَغَ ذَلِكَ رَسُولَ اللَّهِ ﷺ فَحَمِدَ اللَّهَ وَأَثْنَى عَلَيْهِ ثُمَّ قَالَ مَا بَالُ أَقْوَامٍ يَقُولُونَ كَذَا وَكَذَا لَكِنِّي أُصَلِّي وَأَنَامُ وَأَصُومُ وَأُفْطِرُ وَأَتَزَوَّجُ النِّسَاءَ فَمَنْ رَغِبَ عَنْ سُنَّتِي فَلَيْسَ مِنِّي