What is the difference between risaalatah and risaalaati for Hafs and Shu'bah

Question
What is the difference between risaalatah and risaalaati for Hafs and Shu'bah in the  Quran surah Al-Maa'idah aayah 67
Answer
The word  رسالته  is read by some of the qira'aat or riwaayaat which includes Hafs in singular form (his message) without an alif after the laam and with a fahtah on the تاء and in other qiraa'aat or riwaayaat including Shu'bah in the plural form رسالاته with an alif after the laam and a kasrah on the تاء  
  The meaning is the same for both as all of Allah's messages had the message of tawheed and all messengers who commanded to convey Allah's message as it was revealed to them.  And Allah knows best