The Blessed Lord said :
पार्थ नैवेह नामुत्र विनाशस्तस्य विद्यते ।
न हि कल्याणकृत्कश्चिदुर्गतिं तात गच्छति ॥ ४० ॥
pārtha naiveha nāmutra vināśastasya vidyate .
na hi kalyāṇakṛtkaścidurgatiṃ tāta gacchati .. 40 ..
O Pārtha, neither in this world nor in the next is there destruction for him; none, verily, who does good, My son, ever comes to grief.
Read the commentary
He who has failed in Yoga will not be subject to a lower birth than the present one either here or hereafter. My son : [Sk. ’tata’ is translated into ‘son’]. ‘Tata’ in Sanskrit means ‘father’ because the father propagates (Sk. root ’tan’) himself in the form of his son. Since thus the father himself is the son, the son also is called tata. Even a disciple, though not a son, is addressed as son because he is like a son.
What, then will happen to him?