2:68  

तस्माद्यस्य महाबाहो निगृहीतानि सर्वशः ।
इन्द्रियाणीन्द्रियार्थेभ्यस्तस्य प्रज्ञा प्रतिष्ठिता ॥२- ६८॥

tasmaadyasya mahaabaaho nigRRihiitaani sarwashaH ।

indriyaaNiindriyaarthebhyastasya pradnyaa pratiShThitaa ॥२- ६८॥

Source: Automatic ITRANS Transliteration

Therefore, O great-armed one, whoever's perceptions from perception objects
Are all restrained, that one's insight is stabilized.

Therefore, O great-armed one, insight is stabilized for anyone whose perceptions are all restrained from the objects of perception.

Source: Milind S. Pandit

Therefore, O Arjuna, one's Prajna becomes steady whose senses are completely withdrawn from the sense objects.

Source: The Bhagavad-Gita: The Sacred Song

Therefore, O mighty-armed, one whose senses are restrained from their objects is certainly of steady intelligence.

Source: Bhagavad Gita As It Is