BG 2.32
यदृच्छया चोपपन्नं स्वर्गद्वारमपावृतम्
सुखिनः क्षत्रियाः पार्थ लभन्ते युद्धमीदृशम्
yadṛcchayā copapannaṃ svargadvāramapāvṛtam
sukhinaḥ kṣatriyāḥ pārtha labhante yuddhamīdṛśam
TRANSLATION
Happy are the Kshatriyas, O Arjuna, to whom a war like this comes of its own accord; it opens the gate to heaven.
PURPORT
Only the fortunate Kshatriyas, i.e., the meritorious ones, gain such a war as this, which has come unsought, which is the means for the attainment of immeasurable bliss, and which gives an unobstructed pathway to heaven.