وَيُكْرَهُ التَّنَفُّلُ بَعْدَ طُلُوعِ الْفَجْرِ بِأَكْثَرَ مِنْ سُنَّتِهِ، وَبَعْدَ صَلَاةِ الْفَجْرِ، وَبَعْدَ صَلَاةِ الْعَصْرِ، وَقَبْلَ صَلَاةِ الْمَغْرِبِ
Nafl is disliked after true dawn beyond the two Sunnah rak'ahs of Fajr; after the Fajr Fard until sunrise; after the Asr Fard until sunset; and before the Maghrib Fard. These broader Nafl restrictions are not identical to the three severe windows above.