Preservation and Characteristics of Prophets and Messengers
Allâh sent His prophets to convey to people what benefit them in their Religion and life. The prophets are the ideal example to people. For this reason, Allâh beautified them with praised attributes and good morals. Some of them are: truthfulness, trustworthiness, intelligence, courageousness and pureness. Allâh ta`âlâ said after mentioning some of them:
﴿ وَكُلًّا فَضَّلْنَا عَلَى الْعَالَمِينَ ﴾
The ayah means: « Each one of them is selected over the humans and jinn. » [Surat Al-‘An`âm 86]. The prophets are the best of the creations. This means that each of the Prophets is better than all the angels and better than all other creatures as the world englobes the humans, the jinns and the angels.
The Prophets are the best of creatures. They have the best manners, including truthfulness, honesty and extreme intelligence. It is impossible for prophets to lie, betray and stupidity. They are protected from blasphemy, major sins, and minor degrading sins. They all have a beautiful face and a beautiful voice. They are preserved from repulsive diseases that would lead to people getting away from them.
The prophet, salla l-Lâhu `alayhi wa sallam, said:
« مَا بَعَثَ الله نَبِيًّا إِلاَّ حَسَنَ الْوَجْهِ حَسَنَ الصَّوْتِ وَإِنَّ نَبِيَّكُم أَحسَنُهُمْ وَجْهًا وَأَحْسَنُهُمْ صَوْتًا »
(mâ ba`atha l-Lâhu nabiyyan ‘illâ Hasan l-wajhi Hasna S-Sawti wa ‘inna nabiyyakum ‘aHsanuhum wajhan wa ‘aHsanuhum Sawtâ)
which means: « Allâh has sent the Prophets, all with a beautiful face and a beautiful voice and surely your Prophet has the most beautiful face and the most beautiful voice of them. » [Narrated by at-tirmidhiyy]
All Prophets have a beautiful appearance and they are preserved from anything that might lead to people not accepting their message. Therefore, they are never inflicted with such an illness that would lead people away from them, such as leprosy. Allâh has absolute Wisdom and does not send prophets that would lead people away.
So it is false what some people claim that the Prophet ‘Ayyub had worms coming out of his body and putting them back on his body telling them to eat what God have given you, this is not worthy of prophets and this contradict the religion and it’s blasphemy. See: Protect his Faith: Avoid Apostasy, Blasphemy, Disbelief
Similarly, all the Prophets have a beautiful voice and speak in a very understandable way. It is not permissible to believe that Prophet Mûçâ (Moses) stuttered or spoke in a way that people did not understand as this contradicts the status of a prophet who was sent to deliver the message of the religion. Attributing this to a prophet is blasphemy.
See: Preservation, Attributes and Characteristics of Prophets and Messengers