Valmiki Ramayana Ayodhya Kanda Sarga 64 Shloka 26

इदम् this, यस्मात् for which reason, आज्ञानात् out of ignorance, कृतं हि has been done, तेनैव that is why, जीवसि you will live, इक्ष्वाकूणाम् Ikshvakus', कुलमपि race itself, अद्य now, न स्यात् हि would not have been there, भवान् you also, कुतः where are you

'Since you have done this unwittingly you are still alive. If it had been otherwise, your Ikshvaku race itself would have been exterminated, what to speak of you