صحيح ابن خزيمه
Sahih Ibn Khuzaymah
جماع أبواب الأذان والإقامةChapters on Adhan and Iqamah
(108) بَابُ إِبَاحَةِ الْقِرَاءَةِ فِي الْأُخْرَيَيْنِ مِنَ الظُّهْرِ وَالْعَصْرِ بِأَكْثَرَ مِنْ فَاتِحَةِ الْكِتَابِ،Chapter 108: Permissibility of reciting more than Al-Fatihah in the last two rak‘ahs of Dhuhr and Asr
Hadith Q509
وَهَذَا مِنِ اخْتِلَافِ الْمُبَاحِ لَا مِنِ اخْتِلَافِ الَّذِي يَكُونُ أَحَدُهُمَا مَحْظُورًا وَالْآخَرُ مُبَاحًا، فَجَائِزٌ أَنْ يَقْرَأَ فِي الْأُخْرَيَيْنِ فِي كُلِّ رَكْعَةٍ بِفَاتِحَةِ الْكِتَابِ، فَيَقْصُرَ مِنَ الْقِرَاءَةِ عَلَيْهَا، وَمُبَاحٌ أَنْ يُزَادَ فِي الْأُخْرَيَيْنِ عَلَى فَاتِحَةِ الْكِتَابِ.
It is permissible to recite more than Surah Al-Fatihah in the last two rak'ahs of Dhuhr and Asr prayers, and this difference is of the type of permissible differences. This is not a difference where one thing is forbidden and impermissible while the other is permissible and allowed. Therefore, it is permissible to suffice with only the recitation of Surah Al-Fatihah in each of the last two rak'ahs, and it is also permissible to recite more than Surah Al-Fatihah in the last two rak'ahs.
