6:43
तत्र तं बुद्धिसंयोगं लभते पौर्वदेहिकम् ।
यतते च ततो भूयः संसिद्धौ कुरुनन्दन ॥६- ४३॥
tatra taM buddhisaMyogaM labhate paurwadehikam ।
yatate cha tato bhooyaH saMsiddhau kurunandana ॥६- ४३॥
Source: Automatic ITRANS Transliteration
There, union with wisdom is received from the former body.
joy of the Kurus.
Source: Milind S. Pandit
After taking such a birth, O Arjuna, one regains the knowledge acquired in the previous life, and strives again to achieve perfection.
On taking such a birth, he again revives the divine consciousness of his previous life, and he tries to make further progress in order to achieve complete success, O son of Kuru.
Source: Bhagavad Gita As It Is