9:3  

अश्रद्दधानाः पुरुषा धर्मस्यास्य परन्तप ।
अप्राप्य मां निवर्तन्ते मृत्युसंसारवर्त्मनि ॥९- ३॥

ashraddadhaanaaH puruShaa dharmasyaasya parantapa ।

apraapya maaM niwartante mRRityusaMsaarawartmani ॥९- ३॥

Source: Automatic ITRANS Transliteration

Persons unbelieving in this discipline, O foe-scorcher,
Without achieving me, return to the path of the death-cycle.

Source: Milind S. Pandit

O Arjuna, those who have no faith in this knowledge follow the cycle of birth and death without attaining Me.

Source: The Bhagavad-Gita: The Sacred Song

Those who are not faithful on the path of devotional service cannot attain Me, O conqueror of foes, but return to birth and death in this material world.

Source: Bhagavad Gita As It Is