وَ مَاۤ    اَرۡسَلۡنٰکَ   اِلَّا   رَحۡمَۃً    لِّلۡعٰلَمِیۡنَ    ﴿۱۰۷﴾

Translation from Kanz-ul-Iman: And We did not send you (O dear Prophet Muhammad) except as a mercy for the entire world. (Part 17, Al-Anbiya, verse 107)

It is the summary of whatever A’la Hadrat رَحْمَةُ اللهِ تَعَالٰی عَلَيْه has stated regarding this blessed verse: Everything is called Aalam including Prophets and angels except Allah عَزَّوَجَلَّ, so certainly the Beloved Prophet صَلَّى اللهُ تَعَالٰى عَلَيْهِ وَاٰلِهٖ وَسَلَّم is mercy for all of them and is the blessing of Allah عَزَّوَجَلَّ and all of them are benefited by him. (Fatawa Razawiyyah, vol. 30, pp. 141)

Regarding this blessed verse, Imam Fakhruddin Raazi رَحْمَةُ اللهِ تَعَالٰی عَلَيْه has said: When the Beloved Prophet صَلَّى اللهُ تَعَالٰى عَلَيْهِ وَاٰلِهٖ وَسَلَّم is the mercy for all the worlds, so it is also compulsory that he صَلَّى اللهُ تَعَالٰى عَلَيْهِ وَاٰلِهٖ وَسَلَّم should be the best of all the worlds, only then will be declared mercy for them.

(At-Tafseer-ul-Kabeer, vol. 2, pp. 521)

Sayyiduna ‘Abdullah Bin ‘Abbas رَضِىَ الـلّٰـهُ تَـعَـالٰی عَـنْـهُمَا has said:

اِنَّ اللہَ تَعَالٰی فَضَّلَ مُحَمَّدًا  (صَلَّی اللہُ تَعَالٰی عَلَیْہِ وَسَلَّم )  عَلٰی الْاَنْبِیَاءِ وَعَلٰی اَھْلِ السَّمَاءِ

i.e. Undoubtedly Allah عَزَّوَجَلَّ has made Muhammad صَلَّى اللهُ تَعَالٰى عَلَيْهِ وَاٰلِهٖ وَسَلَّم the most superior to all the Prophets and angels. (Sunan Daarimi, vol. 1, pp. 38, Hadees 46)

The chief of angels, Sayyiduna Jibra`eel عَـلَـيْهِ الـصَّلٰوةُ وَالـسَّلَام himself humbly said:

قَلَّبْتُ مَشَارِقَ الْاَرْضِ وَ مَغَارِبَہَا فَلَمْ اَجِدْ رَجُلاً اَفْضَلَ مِنْ مُحَمَّدٍ

i.e. I have searched the easts and wests of the earth, but found no one more superior to Muhammad صَلَّى اللهُ تَعَالٰى عَلَيْهِ وَاٰلِهٖ وَسَلَّم.

(Al-Mu’jam-ul-Awsat, vol. 4, pp. 373, Hadees 6258)