Al-Adab Al-Mufrad, Book 24, Hadith 436 (English) ⓘ

'A'isha said, "The Prophet, may Allah bless him and grant him peace, did something and thereby created a dispensation for doing it. Some people still refrained from doing. The Prophet, may Allah bless him and grant him peace, heard about that and he gave a speech and praised Allah. Then he said, 'What is wrong with people who restrain themselves from doing something which I do? By Allah, I know Allah better than they do and I fear Him more than they do!'"

حَدَّثَنَا عُمَرُ بْنُ حَفْصٍ، قَالَ‏:‏ حَدَّثَنَا أَبِي، قَالَ‏:‏ حَدَّثَنَا الأَعْمَشُ، قَالَ‏:‏ حَدَّثَنَا مُسْلِمٌ، عَنْ مَسْرُوقٍ قَالَ‏:‏ قَالَتْ عَائِشَةُ‏:‏ صَنَعَ النَّبِيُّ صلى الله عليه وسلم شَيْئًا، فَرَخَّصَ فِيهِ، فَتَنَزَّهَ عَنْهُ قَوْمٌ، فَبَلَغَ ذَلِكَ النَّبِيَّ صلى الله عليه وسلم فَخَطَبَ، فَحَمِدَ اللَّهَ، ثُمَّ قَالَ‏:‏ مَا بَالُ أَقْوَامٍ يَتَنَزَّهُونَ عَنِ الشَّيْءِ أَصْنَعُهُ‏؟‏ فَوَاللَّهِ إِنِّي لَأَعْلَمُهُمْ بِاللَّهِ، وَأَشَدُّهُمْ لَهُ خَشْيَةً‏.‏