Belief in Allah’s Messengers
It is the second article of faith and includes belief that Allah chose His messengers from the angels and the humans
اَللّٰهُ يَصْطَفِيْ مِنَ الْمَلٰۗىِٕكَةِ رُسُلًا وَّمِنَ النَّاسِ ۭ اِنَّ اللّٰهَ سَمِيْعٌۢ بَصِيْرٌ
Quran: Allah chooses Messengers from angels and from men. Verily,Allah is All-Hearer, All-Seer. 
All the messengers were, human beings that did not have any divine attributes.
Quran: Say (O Muhammad ): “I am only a human being like you. It is inspired in me that your Ilh (God) is One Ilh (God -Allah)….
Also, to believe that Muhammad (ﷺ) is the last of the messengers 
Difference between a Prophet and a Messenger: a prophet is a person who has not been given a new Law (book) but undertake previous Law (Book). and messenger is a person who has been given new Law (Book). Thus, all messengers were first prophets, while not all prophets were messengers; this means that when Allah says that Muhammad (saw) is the “Seal of the Prophets,” then he (ﷺ) is also the seal of the messengers.
There are 3 aspects to believe in here:
- To believe that the message of all prophets is the truth.
2. To believe that Allah sent messengers to every nation and the names of some we know from Quran and authentic hadith and others name we don’t know.
Quran: And, indeed We have sent Messengers before you (O Muhammadﷺ); of some of them We have related to you their story (names) and of some We have not related to you their story 
- To believe in everything that every prophet stated and that they all communicated their messages completely and properly.
 Qur’an. Surah al-Hajj 22:75; Surah al-Anaam 6:124).
 Quran 41:6
 Qur’an 33:40).
 Qur’an.Surah Ghaafir 40:78).
1 Software: Shamela, Easy Quran and Hadith
2عقیدۃ Muslim Students Board
3 Ask Islam Pedia www.askislampedia.com
4 The authentic creed (Pdf)