Bhagavad Gita · Bhakti YogaChapter 12, Shloka 11 (12.11)

Shankaracharya. mayi kriyamāṇāni karmāṇi saṃnyasya yat karaṇaṃ teṣām anuṣṭhānaṃ saḥ madyogaḥ; sarveṣāṃ karmaṇāṃ phalasaṃnyāsaṃ … kuru yatātmavān saṃyatacittaḥ san.

Acharya Ramanuja — a different reading. madyogam āśritya etad api kartuṃ na śaknoṣi — "madyoga" = bhakti-yoga formed by contemplating my qualities; if you cannot do even my works as a part of bhakti-yoga, tataḥ akṣarayogam ātmasvabhāvānusaṃdhānarūpaṃ parabhaktijananaṃ pūrvaṣaṭkoditam āśritya — then take refuge in the akshara-yoga (contemplation of the nature of the self) taught in the first six chapters, and give up the fruits as its means; the sequence: from giving up the fruits comes knowledge of the self → realisation of the self → mayi parā bhaktiḥ svayam eva utpadyate — supreme devotion arises of itself (18.46, 18.53–18.54).

Shridhar Swami. A simple formula for giving up the fruits: mayā tāvad īśvarājñayā yathāśakti karmāṇi kartavyāni, phalaṃ punar dṛṣṭam adṛṣṭaṃ vā parameśvarādhīnam ity evaṃ mayi bhāram āropya — "My job is to act as well as I can; the fruit — seen or unseen — is in the Lord's hands" — placing the burden on me in this way.

Madhusudana Saraswati. He gives the reason: bahirviṣayākṛṣṭacetastvād — when the mind is pulled towards outer objects; then yatātmavān … vivekī ca san — give up the fruits with self-restraint and discernment.