Du'a of reliance on Al-Wakeel

يَا وَكِيلُ يَا رَبِّ اجْعَلْنِي مِنَ الْمُتَوَكِّلِينَ عَلَيْكَ فِي حَيَاتِي كُلِّهَا وَلَا تَكِلْنِي إِلَى نَفْسِي طَرْفَةَ عَيْنٍ وَلَا أَقَلَّ مِنْ ذَلِكَ تَوَكَّلْتُ عَلَيْكَ فَلَا تَتْرُكْنِي يَا وَكِيلِي

Ya Wakeelu ya rabbi ij'alni minal mutawakileena 'alayka fi hayati kulliha wa la takilni ila nafsi tarfata 'aynin wa la aqalla min dhalika tawakkaltu 'alayka fala tatrukni ya wakeeli

O Allah, The Trustee, O Lord, make me among those who rely entirely on You in all my life. Do not leave me to myself for the blink of an eye, nor for anything less. I rely on You, so do not abandon me, O my Trustee.

A general supplication incorporating the exact phrasing "wa-lā takilnī ilā nafsī ṭarfata ʿayn" from Sunan Abī Dāwūd 5090 (ḥasan).