The Faith (Al-Iman)

Faith means to accept sincerely all the beliefs and orders thatMohammad(s.a.s.) commununicated to us as had been revealed to him by Allah the Mostt Great. Al-Iman is born of the confirmation of this process in life.However, it is necessary to recite the profession of faith(al-kalimah al-shahadah) with the tongue and to believe it in the heart,both during this earthly life and at the time of death in order to be regarded as a Muslim.
Ash-hadu an-la ilaha ill-Allahu wa ash-hadu anna Muhammadan Abdu-hu wa Rasuluhu. I bear witness that there is no God but Allah and I bear witness that Muhammad is his Servant and Messenger.
The principles of faith(Al-iman) are six.The Arabic text stating the principles


آمَنْتُ بِاللهِ وَ مَلاَئِكَتِهِ وَ كُتُبِهِ وَ رُسُلِهِ وَالْيَوْمِ الآخِرِ وَبِالْقَدَرِ خَيْرِهِ وَ شَرِّهِ مِنَ اللهُ تَعَالَى وَالْبَعْثُ بَعْدَ الْمَوْتِ حَقّ ٌ اَشْهَدُ اَنْ لآ اِلَهَ اِلاَ للهُ وَ اَشْهَدُ اَنَّ مُحَمَّداً عَبْدُهُ وَ رَسُولُهُ


Its transcription in Latin letters(roughly approximating its sound)
"Amantu Billahi wa Malaa'ikatihi wa Kutubihi wa Rusulihi wa'l yawmil Akhiri wa bil'Qadari wa shar!rihi min'Allahi Ta'alawa'l ba'thu ba'dal mawti, Hak'kun ash'hadu an-la-ilaha İllalah wa ash'adu anna Muhammadan Abduhu wa Rasuluhu."

Translation:
I believe in Allah,the most high, in his ANGELS ,in his BOOKS, in his PROPHETS, in the day of JUDGEMENT, in divine predestination and in fact that both good and evil occur through the will of ALLAH, the Supreme Being and that there will be life after death. I testify that Muhammad(s.a.s) is His servant and messenger.