The Quran root و ك ل w-k-l

إِذْ هَمَّت طَّائِفَتَانِ مِنكُمْ أَن تَفْشَلَا وَاللَّهُ وَلِيُّهُمَا وَعَلَى اللَّهِ فَلْيَتَوَكَّلِ الْمُؤْمِنُونَ ١٢٢

فَلْيَتَوَكَّلِ falyatawakkali · let put (their) trust

When two parties among you were about to lose courage, but Allāh was their ally; and upon Allāh the believers should rely. (Surah Ali 'Imran, 3:122)

فَبِمَا رَحْمَةٍ مِّنَ اللَّهِ لِنتَ لَهُمْ وَلَوْ كُنتَ فَظًّا غَلِيظَ الْقَلْبِ لَانفَضُّوا مِنْ حَوْلِكَ فَاعْفُ عَنْهُمْ وَاسْتَغْفِرْ لَهُمْ وَشَاوِرْهُمْ فِي الْأَمْرِ فَإِذَا عَزَمْتَ فَتَوَكَّلْ عَلَى اللَّهِ إِنَّ اللَّهَ يُحِبُّ الْمُتَوَكِّلِينَ ١٥٩

فَتَوَكَّلْ fatawakkal · then put trust

So by mercy from Allāh, [O Muḥammad], you were lenient with them. And if you had been rude [in speech] and harsh in heart, they would have disbanded from about you. So pardon them and ask forgiveness for them and consult them in the matter. And when you have decided, then rely upon Allāh. Indeed, Allāh loves those who rely [upon Him]. (Surah Ali 'Imran, 3:159)

الَّذِينَ قَالَ لَهُمُ النَّاسُ إِنَّ النَّاسَ قَدْ جَمَعُوا لَكُمْ فَاخْشَوْهُمْ فَزَادَهُمْ إِيمَانًا وَقَالُوا حَسْبُنَا اللَّهُ وَنِعْمَ الْوَكِيلُ ١٧٣

الْوَكِيلُ l-wakīlu · [the] Disposer of affairs

Those to whom people [i.e., hypocrites] said, "Indeed, the people have gathered against you, so fear them." But it [merely] increased them in faith, and they said, "Sufficient for us is Allāh, and [He is] the best Disposer of affairs." (Surah Ali 'Imran, 3:173)

وَقَالَ يَا بَنِيَّ لَا تَدْخُلُوا مِن بَابٍ وَاحِدٍ وَادْخُلُوا مِنْ أَبْوَابٍ مُّتَفَرِّقَةٍ وَمَا أُغْنِي عَنكُم مِّنَ اللَّهِ مِن شَيْءٍ إِنِ الْحُكْمُ إِلَّا لِلَّهِ عَلَيْهِ تَوَكَّلْتُ وَعَلَيْهِ فَلْيَتَوَكَّلِ الْمُتَوَكِّلُونَ ٦٧

الْمُتَوَكِّلُونَ l-mutawakilūna · the ones who put trust

And he said, "O my sons, do not enter from one gate but enter from different gates; and I cannot avail you against [the decree of] Allāh at all. The decision is only for Allāh; upon Him I have relied, and upon Him let those who would rely [indeed] rely." (Surah Yusuf, 12:67)

أُولَٰئِكَ الَّذِينَ آتَيْنَاهُمُ الْكِتَابَ وَالْحُكْمَ وَالنُّبُوَّةَ فَإِن يَكْفُرْ بِهَا هَٰؤُلَاءِ فَقَدْ وَكَّلْنَا بِهَا قَوْمًا لَّيْسُوا بِهَا بِكَافِرِينَ ٨٩

وَكَّلْنَا wakkalnā · We have entrusted

Those are the ones to whom We gave the Scripture and authority and prophethood. But if they [i.e., the disbelievers] deny it, then We have entrusted it to a people who are not therein disbelievers. (Surah Al-An'am, 6:89)