Best Answer - Chosen by Voting
الفطرة هي الحالة الأولية التي نكون عليها عند الخلق
والمقصود بها في الحديث هو الإيمان والتوحيد
في القرآن :
"فَأَقِمْ وَجْهَكَ لِلدِّينِ حَنِيفًا ۚ فِطْرَتَ اللَّـهِ الَّتِي فَطَرَ النَّاسَ عَلَيْهَا ۚ لَا تَبْدِيلَ لِخَلْقِ اللَّـهِ ۚ ذَٰلِكَ الدِّينُ الْقَيِّمُ وَلَـٰكِنَّ أَكْثَرَ النَّاسِ لَا يَعْلَمُونَ" الروم: 30
Fitra is the initial setting. The initial state we are created on. before being shaped and modified by society and culture and environment. and in this Hadeeth it's referring to Tawheed.
"So direct your face toward the religion, inclining to truth. [Adhere to] the fitrah of Allah upon which He has created [all] people. No change should there be in the creation of Allah. That is the correct religion, but most of the people do not know."
Quran[30:30]
فِطْرَتَ اللَّـهِ الَّتِي فَطَرَ النَّاسَ عَلَيْهَا ۚ
The nature (framed) of Allah, in which He has created man.
http://tanzil.net/#30:30
