Sahih Muslim Book - 15, Hadith - 2961

وَحَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى وَابْنُ بَشَّارٍ قَالَ ابْنُ الْمُثَنَّى حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ حَدَّثَنَا شُعْبَةُ عَنِ الْحَكَمِ عَنْ عُمَارَةَ بْنِ عُمَيْرٍ عَنْ إِبْرَاهِيمَ بْنِ أَبِى مُوسَى عَنْ أَبِى مُوسَى أَنَّهُ كَانَ يُفْتِى بِالْمُتْعَةِ فَقَالَ لَهُ رَجُلٌ رُوَيْدَكَ بِبَعْضِ فُتْيَاكَ فَإِنَّكَ لاَ تَدْرِى مَا أَحْدَثَ أَمِيرُ الْمُؤْمِنِينَ فِى النُّسُكِ بَعْدُ حَتَّى لَقِيَهُ بَعْدُ فَسَأَلَهُ فَقَالَ عُمَرُ قَدْ عَلِمْتُ أَنَّ النَّبِىَّ -صلى الله عليه وسلم- قَدْ فَعَلَهُ وَأَصْحَابُهُ وَلَكِنْ كَرِهْتُ أَنْ يَظَلُّوا مُعْرِسِينَ بِهِنَّ فِى الأَرَاكِ ثُمَّ يَرُوحُونَ فِى الْحَجِّ تَقْطُرُ رُءُوسُهُمْ.

It was narrated that Abu Musa that he used to issue a Fatwa allowing Mutah, and a man said to him: “Exercise restraint in some of your Fatwa, for you do not know what the Commander of the Believers has introduced concerning the rituals.” After that I met him and asked him about that. Umar said: ‘I know that the Prophet (SAW) and his Companions did that, but I did not want married people to have intercourse beneath the trees and then go out for Hajj with their heads dripping.’