Sahih Muslim Book - 13, Hadith - 2614

وَحَدَّثَنَاهُ أَحْمَدُ بْنُ عُثْمَانَ النَّوْفَلِىُّ حَدَّثَنَا أَبُو دَاوُدَ حَدَّثَنَا شُعْبَةُ بِهَذَا الإِسْنَادِ. نَحْوَهُ وَزَادَ قَالَ شُعْبَةُ وَكَانَ يَبْلُغُنِى عَنْ يَحْيَى بْنِ أَبِى كَثِيرٍ أَنَّهُ كَانَ يَزِيدُ فِى هَذَا الْحَدِيثِ وَفِى هَذَا الإِسْنَادِ أَنَّهُ قَالَ « عَلَيْكُمْ بِرُخْصَةِ اللَّهِ الَّذِى رَخَّصَ لَكُمْ ». قَالَ فَلَمَّا سَأَلْتُهُ لَمْ يَحْفَظْهُ.

It was narrated from Shu’bah with this chain (a Hadith similar to no. 2613), but Shu’bah said: “I was informed by Yahya bin Abi Kathir that he used to add to this Hadith. And with this chain in it said: ‘You should avail yourselves of the concession that Allah has granted to you.’” He said: “So when I asked him he did not remember it.”