Arthashastra
ब्राह्मणम् अधीयानं दश वर्षाण्य् अप्रजाता, द्वादश प्रजाता, राज पुरुषम् आयुः क्षयाद् आकाङ्क्षेत ॥
If ॥ her॥ husband is a Brāhmaṇa studying abroad, his childless wife should wait for him for ten years; if she has children, for twelve years.
english translation
brAhmaNam adhIyAnaM daza varSANy aprajAtA, dvAdaza prajAtA, rAja puruSam AyuH kSayAd AkAGkSeta ॥
hk transliteration by Sanscript