Al-Khiá¹£Äl - Part 15: On Fifteen-Numbered Characteristics Chapter: The Rewards of Fasting in the Month of Rajab د ب٠اÙØس٠رض٠اÙÙ٠عÙÙ ÙاÙ: ØدثÙ٠اÙØس٠ب٠اÙØسÙ٠ب٠عبداÙعزÙز ب٠اÙÙ ÙتدÙØ Ø¹Ù Ø³Ù٠ب٠اÙ٠بارÙØ Ø¹Ù Ø£Ø¨Ù Ø§ÙØس٠عÙÙ٠اÙسÙا٠ÙاÙ: Ø¥Ù ÙÙØا رÙب اÙسÙÙÙØ© Ø£ÙÙ ÙÙÙ Ù Ø±Ø¬Ø¨Ø ÙØ°Ùر اÙØدÙØ« Ù Ø«Ù٠سÙØ§Ø¡Ø ÙÙد أخرجت ٠ا رÙÙت٠ÙÙ Ø«Ùاب صÙ٠رجب ÙÙ Ùتاب Ùضائ٠رجب 15-6 Muhammad ibn al-Hassan - may God be pleased with him - narrated that Al-Hassan ibn al-Hussein ibn Abdul Aziz ibn al-Mohtadi quoted Sayf ibn al-Mobarak ibn Yazid - the servant of Abil Hassan Musa (MGB), on the authority of his father Al-Mobarak, on the authority of Abil Hassan (MGB), âNoah (MGB) boarded his ark on the first day of Rajab.â He continued the rest of the tradition just as in the above tradition.
I have included what I have found on the rewards for fasting in the month of Rajab in the book Fazaâel Rajab.