yady asatyaṁ vacaḥ śambhoḥ
kathañcid dānavarṣabha
tadainaṁ jahy asad-vācaṁ
na yad vaktānṛtaṁ punaḥ
yadi - if; asatyam - untrue; vacaḥ - the words; śambhoḥ - of Lord Śiva; kathañcit - in any way; dānava-ṛṣabha - O best of the demons; tadā - then; enam - him; jahi - please kill; asat - untrue; vācam - whose words; na - not; yat - so that; vaktā - he may speak; anṛtam - what is false; punaḥ - again.
Lord Śiva may have the power to revive himself even after being killed, but at least he will be dissuaded from lying again.