Nahj al-Balāgha
Hadith 797[رسول الله :] أَمِينُ وَحْيِهِ، وَخَاتَمُ رُسُلِهِ، وَبَشِيرُ رَحْمَتِهِ، وَنَذِيرُ نِقْمَتِهِ.
The Prophet is the trustee of Allāh’s revelation, the Last of His Prophets, the giver of tidings of His mercy and the warner for His chastisement.