The word is arsalnāka, “We sent thee”. In all 13 verses that carry it the sentence does the same work: it names the office and stops there.
What he was sent as: a bearer of good news and a warner (2:119, 17:105, 25:56, 35:24), a witness alongside those two (33:45, 48:8), a messenger to the people with God as witness (4:79), to a nation before which nations have passed (13:30), to all mankind together (34:28), and, once, as a mercy to all peoples (21:107).
Four of them narrow it with illā, only. We sent thee only as a bearer of good news and a warner (17:105, 25:56), only as a mercy to all peoples (21:107), only to mankind entire (34:28). The other nine state the office without shutting anything out.
Two of them are the same sentence word for word, witness and bearer of good news and warner, but they open differently: 33:45 addresses him as al-nabī, and 48:8 addresses no one. Where the set names the office instead, the word is rasūl (4:79, 4:80).
Three of the 13 say what he was not. “We did not send thee as a keeper over them” (4:80, 17:54, 42:48). The same sentence, three times, in three different sūras.
How this list was made
Every verse containing أَرْسَلْنَٰكَ (arsalnāka), in muṣḥaf order.
Every verse the rule matches is in the list.
Al-Baqarah2:119We sent thee with the truth as a bearer of glad tidings and a warner; and thou wilt not be questioned about the companions of Hell.
اِنَّٓااَرْسَلْنَاكَبِالْحَقِّبَش۪يراًوَنَذ۪يراًۙوَلَاتُسْـَٔلُعَنْاَصْحَابِالْجَح۪يمِ١١٩
Inna arsalnaka bilhaqqibasheeran wanatheeran wala tus-alu Aaan as-habialjaheem
What befalls thee of good, it is from God; and what befalls thee of evil, it is from thyself. And We have sent thee to mankind as a messenger; and sufficient is God as witness.
مَٓااَصَابَكَمِنْحَسَنَةٍفَمِنَاللّٰهِۘوَمَٓااَصَابَكَمِنْسَيِّئَةٍفَمِنْنَفْسِكَۜوَاَرْسَلْنَاكَلِلنَّاسِرَسُولاًۜوَكَفٰىبِاللّٰهِشَه۪يداً٧٩
Ma asabaka min hasanatinfamina Allahi wama asabaka min sayyi-atinfamin nafsika waarsalnaka linnasi rasoolanwakafa billahi shaheedan
Whoso obeys the Messenger, he has obeyed God; and whoso turns away: We sent thee not as a custodian over them.
مَنْيُطِـعِالرَّسُولَفَقَدْاَطَاعَاللّٰهَۚوَمَنْتَوَلّٰىفَمَٓااَرْسَلْنَاكَعَلَيْهِمْحَف۪يظاًۜ٨٠
Man yutiAAi arrasoola faqad ataAAaAllaha waman tawalla fama arsalnakaAAalayhim hafeetha
Thus have We sent thee among a community — communities have passed away before it — that thou recite to them what We have revealed to thee; but they deny the Almighty. Say thou: “He is my Lord: — there is no god save He — in Him have I placed my trust, and to Him is my return.”
كَذٰلِكَاَرْسَلْنَاكَف۪ٓياُمَّةٍقَدْخَلَتْمِنْقَبْلِهَٓااُمَمٌلِتَتْلُوَ۬اعَلَيْهِمُالَّـذ۪ٓياَوْحَيْنَٓااِلَيْكَوَهُمْيَكْفُرُونَبِالرَّحْمٰنِۜقُلْهُوَرَبّ۪يلَٓااِلٰهَاِلَّاهُوَۚعَلَيْهِتَوَكَّلْتُوَاِلَيْهِمَتَابِ٣٠
Kathalika arsalnaka feeommatin qad khalat min qabliha omamun litatluwa AAalayhimuallathee awhayna ilayka wahum yakfuroona birrahmaniqul huwa rabbee la ilaha illa huwa AAalayhitawakkaltu wa-ilayhi matab
Your Lord knows you best; if He wills, He will have mercy on you or, if He wills, He will punish you. And We have not sent thee as a guardian over them.
رَبُّكُمْاَعْلَمُبِكُمْۜاِنْيَشَأْيَرْحَمْكُمْاَوْاِنْيَشَأْيُعَذِّبْكُمْۜوَمَٓااَرْسَلْنَاكَعَلَيْهِمْوَك۪يلاً٥٤
Rabbukum aAAlamu bikum in yasha/ yarhamkumaw in yasha/ yuAAaththibkum wama arsalnakaAAalayhim wakeela
And with the truth have We sent it down, and with the truth has it come down — and We sent thee only as a bearer of glad tidings and a warner —
وَبِالْحَقِّاَنْزَلْنَاهُوَبِالْحَقِّنَزَلَۜوَمَٓااَرْسَلْنَاكَاِلَّامُبَشِّراًوَنَذ۪يراًۢ١٠٥
Wabilhaqqi anzalnahuwabilhaqqi nazala wama arsalnaka illamubashshiran wanatheera
And We sent thee only as a mercy for all mankind.
وَمَٓااَرْسَلْنَاكَاِلَّارَحْمَةًلِلْعَالَم۪ينَ١٠٧
Wama arsalnaka illa rahmatanlilAAalameen
And We sent thee only as a bearer of glad tidings and a warner.
وَمَٓااَرْسَلْنَاكَاِلَّامُبَشِّراًوَنَذ۪يراً٥٦
Wama arsalnaka illamubashshiran wanatheera
O Prophet: we have sent thee as a witness, and a bringer of glad tidings, and a warner,
يَٓااَيُّهَاالنَّبِيُّاِنَّٓااَرْسَلْنَاكَشَاهِداًوَمُبَشِّراًوَنَذ۪يراًۙ٤٥
Ya ayyuha annabiyyuinna arsalnaka shahidan wamubashshiran wanatheera
And We sent thee only as a bearer of glad tidings and a warner to all mankind, but most men know not.
وَمَٓااَرْسَلْنَاكَاِلَّاكَٓافَّةًلِلنَّاسِبَش۪يراًوَنَذ۪يراًوَلٰكِنَّاَكْثَرَالنَّاسِلَايَعْلَمُونَ٢٨
Wama arsalnaka illa kaffatanlinnasi basheeran wanatheeran walakinnaakthara annasi la yaAAlamoon
We have sent thee with the truth as a bearer of glad tidings, and as a warner. And there was no community save a warner passed among it.
اِنَّٓااَرْسَلْنَاكَبِالْحَقِّبَش۪يراًوَنَذ۪يراًۜوَاِنْمِنْاُمَّةٍاِلَّاخَلَاف۪يهَانَذ۪يرٌ٢٤
Inna arsalnaka bilhaqqibasheeran wanatheeran wa-in min ommatin illa khalafeeha natheer
And if they turn away — We sent thee not as a custodian over them; upon thee is only the notification. And when We let man taste mercy from Us, he exults thereat; but if evil befalls them because of what their hands sent ahead, then is man ungrateful.
فَاِنْاَعْرَضُوافَمَٓااَرْسَلْنَاكَعَلَيْهِمْحَف۪يظاًۜاِنْعَلَيْكَاِلَّاالْبَلَاغُۜوَاِنَّٓااِذَٓااَذَقْنَاالْاِنْسَانَمِنَّارَحْمَةًفَرِحَبِهَاۜوَاِنْتُصِبْهُمْسَيِّئَةٌبِمَاقَدَّمَتْاَيْد۪يهِمْفَاِنَّالْاِنْسَانَكَفُورٌ٤٨
Fa-in aAAradoo fama arsalnakaAAalayhim hafeethan in AAalayka illaalbalaghu wa-inna itha athaqnaal-insana minna rahmatan fariha bihawa-in tusibhum sayyi-atun bima qaddamat aydeehimfa-inna al-insana kafoor
We have sent thee as a witness, and a bearer of glad tidings, and a warner,
اِنَّٓااَرْسَلْنَاكَشَاهِداًوَمُبَشِّراًوَنَذ۪يراًۙ٨
Inna arsalnaka shahidanwamubashshiran wanatheera
