Hadith Q561

ضِدُّ قَوْلِ بَعْضِ أَهْلِ الْجَهْلِ مِمَّنْ لَا يَفْهَمُ الْعِلْمَ مِنْ أَهْلِ عَصْرِنَا مِمَّنْ زَعَمَ أَنَّ السَّجْدَةَ عِنْدَ قِرَاءَةِ السَّجْدَةِ فِي الصَّلَاةِ الْمَكْتُوبَةِ غَيْرُ جَائِزَةٍ‏.‏
Contrary to the claim of some ignorant people of our era, who are unable to comprehend knowledge and say that it is not permissible to perform prostration upon reciting a verse of prostration during an obligatory prayer.
Hadith Reference صحيح ابن خزيمه / جماع أبواب الأذان والإقامة / Q561